03
Boston excursions, from the free red line to the far side of the North Shore
Ordered by the question this port makes you answer first. What does this buy that the $2.40 bus and a free walk don't?
If Boston bookends a longer New England run, our Canada & New England cruises guide covers where the rest of the itinerary earns its money.
Nothing else on this page matters until this is settled.
Flynn Cruiseport sits at 1 Black Falcon Avenue — working South Boston, not the Boston you booked. Our own Boston cruise port page puts downtown and the Freedom Trail roughly two miles off, with no pedestrian-friendly route connecting them.
That's not a soft warning. It's a haul road and a working port, not a waterfront promenade.
There is a Silver Line stop, and it's named for your terminal: Design Center and Black Falcon Avenue. One cruise-port guide puts the walk at a single block, about 0.2 miles, to 29 Drydock Avenue.
The SL2 runs from there into the Waterfront tunnel and on to South Station, roughly 15 minutes. The MBTA's own fares page prices SL1, SL2 and SL3 as subway fares — $2.40 one way, not a bus fare.
The free-fare thing is worth getting right, because it's directional. Service from Logan Airport on the SL1 is always free, on the MBTA's own wording — so the free ride is the one that brings you to your ship, not the one that takes you away from it.
- Time commitment
- About 15 minutes each way on the SL2, plus a short walk to the stop.
- Getting there
- On foot to Drydock Avenue for the SL2, or a rideshare from the terminal — our destination page puts that at roughly $12–18, while Boston Discovery Guide says $20–30 plus tip.
- Suits
- All three Boston days. Boarding, disembarking or a full port call — everyone has to solve this one.
- Ship or independent
- Independent, comfortably. The bus exists, it's cheap, and it goes where you're going.
Why it's worth considering
Two dollars and change buys the whole difference here: a stranded morning, or a real one. Since September 1, 2026 the MBTA has also allowed unlimited transfers between bus, subway and ferry inside a two-hour window on the same payment method, charged at the highest fare in the trip.
The catch
Sources disagree on the fare.
The MBTA's own page says $2.40 — one widely read cruise-port guide still quotes $2.75. Carry a contactless card, not coins for the farebox.
Verify before you book
- Whether your line is running its own downtown shuttle — Massport's own pages were unreachable to us, and shuttles vary by sailing
- The current SL2 first and last departures against an early boarding or a late all-aboard
- Where rideshares are actually permitted to collect at the terminal on your day
This is the argument against booking a Boston tour at all.
The trail runs 2.5 miles through 16 historic sites — marked the whole way by a red line set into the pavement. It starts at Boston Common and ends at the Bunker Hill Monument, over in Charlestown.
Walking it is free. The Park Service publishes a free audio tour through its own app, in English, Spanish and French.
The guided version is cheap too. The Freedom Trail Foundation's Walk Into History runs 90 minutes and covers 11 of the 16 sites, at $17 an adult, $15 for seniors and students, $8 for children 6 to 12 and free under 6.
It leaves the Boston Common Visitor Information Center at 139 Tremont Street. Departures run daily at 10, 11, noon, 1 and 2, with more times added from late June.
There's a second departure, and it matters more to a cruise passenger. The same tour runs in reverse from the ArtsBoston booth at Faneuil Hall Marketplace, 10:30am daily — and Faneuil Hall is a short walk from where the SL2 drops you, not a bus ride on.
Norwegian's own Freedom Trail Walk runs 3.5 hours at $169.99 for adults and $129.99 for children. It's rated moderate — about three hours of walking on cobblestones. The line's own listing says it isn't recommended for guests using a wheelchair, scooter, walker or cane.
- Time commitment
- 90 minutes for the Foundation's guided walk; 3.5 hours for Norwegian's own version. Self-guided, it's whatever you want.
- Getting there
- SL2 to South Station, then walk or take the Red Line one stop. Faneuil Hall is the closest trail anchor to the bus.
- Suits
- A port day above all, and a boarding morning if you start early. Not a disembarkation day with luggage in hand.
- Ship or independent
- Independent, and it isn't close. The ship's version costs roughly ten times the Foundation's, and buys transport plus a guide.
Why it's worth considering
Sixteen sites on one marked line is a genuinely rare piece of civic design — you cannot get lost, and you can bail out at any point and still have seen something.
The $17 guided tour is the best-value paid thing we found in this port, full stop.
The catch
The trail is free; several of its best interiors are not.
Revolutionary Spaces charges $18 an adult for a joint ticket to the Old State House and Old South Meeting House, $16 for seniors and $10 for youth 6 to 17. The Paul Revere House is $6, and Old North Church's Discovery Pass is $10.
Verify before you book
- Which trail sites are open on your day of the week — several keep reduced or seasonal hours
- Whether the Faneuil Hall departure or the Boston Common one fits your arrival better
- Your all-aboard against Charlestown, since the north end of the trail is the far end from your ship
The tightest good day in Boston, and it starts near the bus.
Faneuil Hall costs nothing to enter, on any floor — the Park Service runs it as a visitor center, not a ticketed museum. Rangers give roughly 15-minute talks in the Great Hall Wednesday through Sunday, at 10:30, 11:30, 12:30, 1:30, 2:30 and 3:30.
Quincy Market's colonnade next door lists Monday to Saturday 10am to 9pm, Sunday 11am to 7pm. There are roughly two dozen food stalls inside.
The North End is a ten-minute walk on from there, and it's the part of this loop that rewards having no plan at all.
The Paul Revere House at 19 North Square is $6 for adults, $5.50 for seniors and college students, and $1 for children 5 to 17. From April 15 to October 31 it runs daily, 10:00am to 5:15pm.
Old North Church asks $10 for an adult Discovery Pass and $5 for youth. It's $15 and $10 with a 25-minute guided bell-chamber climb attached, and it opens Monday to Saturday 10 to 5, Sunday from 12:30.
- Time commitment
- No cruise line publishes a duration for this specific loop. Two to four hours covers it comfortably.
- Getting there
- SL2 to South Station, then about a 10-minute walk north to Faneuil Hall.
- Suits
- A port day, and a boarding morning if you're off the ship by nine. Families do well here.
- Ship or independent
- Independent. Everything in this loop is free or costs single-digit dollars at the door.
Why it's worth considering
You get four Freedom Trail sites, a market hall and the best eating in the city inside about a mile of walking.
The bell-chamber climb is the one paid add-on here we'd actually argue for — it buys access, not narration.
The catch
The bell chamber means two sets of steep stairs, on the church's own description, and groups run 1 to 20 people. Ranger talks at Faneuil Hall don't run Monday or Tuesday either — check the day before you build a morning around them.
Verify before you book
- The day of the week, since Faneuil Hall's ranger talks run Wednesday to Sunday only
- Paul Revere House hours if you're calling after October 31, when the shorter winter schedule starts
- Whether anyone in your group can manage the Old North bell-chamber stairs before you buy that ticket
The north end of the Freedom Trail, and it costs nothing.
The ship is an active US Navy vessel, not a museum piece, and the Navy runs visiting in partnership with Boston National Historical Park. Admission is free, first come first served.
There's a security checkpoint at the Navy Yard Visitor Center. The Park Service's own page says photo ID is required for anyone 18 or older — under-18s skip the ID, not the screening.
Hours are the trap here, not tickets. The museum's own page lists the ship as open Tuesday through Sunday, 10am to 6pm — so a Monday call means the pier, not the deck.
The Park Service puts a typical visit at 15 to 30 minutes. Top-deck access runs over a tide-dependent ramp — so accessibility here genuinely varies by hour, not by day.
The separate USS Constitution Museum opens daily, 9am to 6pm. It asks a suggested donation rather than a fixed price: $15 standard, $25 to pay it forward, free to $10 reduced.
- Time commitment
- 15 to 30 minutes aboard, per the Park Service. Add an hour if you do the museum properly.
- Getting there
- Charlestown, at the far end of the Freedom Trail from your ship. The MBTA ferry from Long Wharf is the pleasant way; the trail is the honest one.
- Suits
- A port day with real hours in it. Too far from the terminal for a tight boarding morning.
- Ship or independent
- Independent. Nothing about a free, ID-gated Navy visit improves by being bundled.
Why it's worth considering
It's free, it's the oldest commissioned warship afloat, and active-duty sailors show you around.
Almost nothing else in a cruise port gives you that for nothing.
The catch
Closed Mondays, and it's the far corner of the map.
Between the walk or ferry out, the security line and the walk back, this is a genuine half-day commitment, for a 20-minute visit.
Verify before you book
- That your call isn't a Monday, when the ship itself doesn't open
- Photo ID for everyone 18 and over in your group, before you leave the terminal
- Current Navy hours close to your date — they shift seasonally and the Navy publishes them, not the Park Service
One direction from the terminal does work on foot, and this is it.
The Seaport boardwalk and Fan Pier sit roughly 15 to 25 minutes' walk from the pier, on flat, ordinary sidewalks. That's a different proposition from the two-mile downtown slog.
The Institute of Contemporary Art is at 25 Harbor Shore Drive, and admission is $20 for adults, $17 for seniors, $15 for students, free for anyone 18 and under. It runs Tuesday to Sunday, 10 to 5, later on Thursdays and Fridays, and closes Mondays.
Thursday nights from 5 to 9 are free for everyone, on the museum's own page, with an advance ticket, not a walk-up.
Further along, the Boston Tea Party Ships & Museum at 306 Congress Street starts at $36 an adult and runs daily, 10am to 5pm. It puts costumed interpreters and a replica brig between you and a harbor full of tea.
The museum doesn't publish a duration on its own site. We're not inventing one.
- Time commitment
- Not published by the museum for the Tea Party ships. The Seaport walk itself runs 15 to 25 minutes each way.
- Getting there
- On foot from the terminal, or one SL2 stop to World Trade Center if the weather's against you.
- Suits
- A boarding morning above everything else — it's the only plan here that doesn't need a bus.
- Ship or independent
- Independent. Shore Excursions Group sells a Tea Party pass at $49; the museum's own door price starts at $36.
Why it's worth considering
It's the answer to the question this port keeps asking — what can I do without solving transport first?
For a half-morning before boarding, that's worth more than a better attraction two miles away.
The catch
The ICA closes Mondays, and the Seaport is new-build glass, not old Boston. If you came for cobblestones and Revolutionary history, this walk isn't it — take the bus instead.
Verify before you book
- ICA opening day, since Mondays are out
- Whether the free Thursday evening slot needs booking ahead on your date
- Tea Party ticket type before you buy — the $36 figure is a starting price, not a flat rate
The oldest park in the majors, and the tour is genuinely cheap.
The Red Sox's own tours page puts the public tour at $30 for adults and $21 for children 3 to 12. It runs about 60 minutes, departing at the top of each hour.
In season, April 1 through October 31, tours run 9am to 5pm. Outside it, 10am to 5pm.
Game days rewrite the schedule. The last tour leaves three hours before first pitch — which on a 1:35pm start means your afternoon is gone before it began.
There are shorter and longer versions. Fenway in Fifteen at $20, a Pregame Tour at $55, an 8am Field Level Tour at $75.
Norwegian sells Fenway Park & Boston Highlights at 3.5 hours and $199.99. That's the tour, a city drive and your transport, for roughly six times the door price.
- Time commitment
- About 60 minutes for the standard tour, on the Red Sox's own listing. 3.5 hours for Norwegian's bundled version.
- Getting there
- SL2 to South Station, Red Line to Park Street, Green Line to Kenmore. Roughly 40 minutes door to door, and a rideshare is quicker.
- Suits
- A port day, or a boarding day with an early start. Baseball fans, obviously, but the building carries non-fans too.
- Ship or independent
- Independent if you're confident on the T. Lean ship if the transfer chain worries you — that's what the premium buys.
Why it's worth considering
A hundred-and-thirteen-year-old ballpark, the Green Monster and the manual scoreboard, for $30.
It's one of the few Boston attractions that's better guided than self-directed — you can't walk in alone.
The catch
Game days shrink the window hard.
Book the earliest slot you can reach. Check the Red Sox schedule against your port day first, not after you've built the morning.
Verify before you book
- Whether there's a home game on your date, and its first-pitch time
- That your chosen tour type still runs — the cheaper and premium versions have different availability
- Your transfer chain back, since Kenmore to the terminal is three changes on the T
The one Boston thing you cannot do on land.
Stellwagen Bank is a national marine sanctuary roughly 25 miles east of Boston. It's a real feeding ground, not a scenic detour — humpbacks, fins, minkes, and the occasional right whale.
The New England Aquarium Whale Watch runs with Boston Harbor City Cruises out of Central Wharf. The Aquarium's own 2026 press release opened the season on May 18 and says trips run through November, with Aquarium naturalists aboard every sailing.
It puts the trip at roughly 3 to 4 hours on a high-speed catamaran, with multiple departures daily.
We could not get a current adult fare out of either operator's own page. The booking widget never rendered a price — so there isn't one printed here, guessed or otherwise.
Whether this fits depends entirely on which Boston day you're having. On a full port day, comfortably. On a boarding day, almost never — a four-hour trip from a wharf two miles away isn't a morning, it's your whole day.
- Time commitment
- Roughly 3 to 4 hours, on the Aquarium's own figure, before you add travel to Central Wharf.
- Getting there
- SL2 to South Station, then a short walk or one Red Line stop to the waterfront. Budget 30 minutes each way from the terminal.
- Suits
- A genuine port day only, and one with a late all-aboard. Families, and anyone who'd rather be on the water than on a bus.
- Ship or independent
- Lean ship if your itinerary is tight, because the line owns the return. Independent if you have the hours and want the Aquarium naturalists.
Why it's worth considering
Stellwagen is a destination in its own right, not a boat ride with whales attached.
Naturalist narration on every trip is the difference between seeing a back and understanding what it's doing — that's worth the ticket on its own.
The catch
The sighting guarantee is worth less to you than to anyone else.
Secondary sources describe a complimentary future ticket if no whales appear — no use at all to someone sailing tomorrow. Treat a blank trip as money spent, not money refunded.
Verify before you book
- The current adult and child fare — we couldn't confirm one from the operator's own page
- Your all-aboard against a 4-hour trip plus an hour of travel at each end
- The season's actual last sailing date if you're calling in November, since the Aquarium names no final day
The ship sells it, and it's the hardest call on this page.
Norwegian's Historic Salem & The Witch Museum runs 4 hours 15 minutes, at $179.99 for adults and $139.99 for children. It's rated easy, with about 40 minutes of walking and standing inside the museum, plus time on Derby Wharf.
The line also sells A Day On The North Shore at 7.5 hours and $249.99, which is most of a port day gone.
Doing it yourself means the ferry, not the coach. City Cruises runs Long Wharf to 10 Blaney Street in Salem in about 50 minutes, seasonally, from roughly May through October.
One secondary source lists departures from Boston at 9:30, 11:45, 2:30 and 5:30, with adult fares around $25 one way, $45 return. The operator's own page wouldn't render its 2026 schedule for us, so treat those as indicative, not booked.
Now the honest part. Salem in October is not a quiet New England town — roughly a million people visit across the month. City officials expected 50,000 to 80,000 on Halloween alone.
Road closures take effect by noon on October 31 — the MBTA garage stops admitting cars at 6pm, and the city actively discourages driving in.
- Time commitment
- 4 hours 15 minutes on Norwegian's own listing, or 7.5 hours for the full North Shore version. Independently, budget five hours minimum.
- Getting there
- Coach from the pier on the ship's version. Independently, SL2 to South Station, walk to Long Wharf, then a 50-minute ferry.
- Suits
- A long port day with an evening all-aboard. Not a boarding day, and not a flight day.
- Ship or independent
- Lean ship in October, genuinely. The rest of the season the ferry is cheaper, prettier and perfectly manageable.
Why it's worth considering
Salem is a real port town with a China Trade history that has nothing to do with witches — and Derby Wharf is the best of it.
The ferry arrives within walking distance of everything.
The catch
October is the month everyone wants to go and the month it works worst.
A million visitors across four weeks, closed streets on the 31st and a ferry running at capacity makes a missed return a real risk — and a missed return means a missed ship.
Verify before you book
- The ferry's actual 2026 season end date, since it closes around the end of October
- Salem's published road-closure map if you're calling in the last week of October
- Your return crossing in writing, booked, before you leave Boston
The answer when walking isn't the answer.
Norwegian lists both the Old Town Trolley Tour of Boston and its Exclusive Boston Duck Tour Experience at 2 hours, $99.99 either way.
The duck tour runs a WWII-era amphibious vehicle through downtown, then straight into the Charles River. It passes the Old State House, Boston Common, Trinity Church, Fenway and the Bunker Hill Monument.
Boarding means nine steps, on the line's own listing, and it isn't wheelchair accessible.
Shore Excursions Group sells an Old Town Trolley ticket at $69 on its own Boston page — the same brand, without the ship's transfer wrapped around it.
The trolley's real argument is hop-on, hop-off. On a port day with limited walking in it, that's a different product — not a longer version of the same one.
- Time commitment
- 2 hours for either, on Norwegian's own listings.
- Getting there
- Coach from the pier on the ship's version. Independently, the SL2 and a short walk to the downtown pickup points.
- Suits
- A port day with limited walking in it, and a first visit where you want the whole city sketched in quickly.
- Ship or independent
- Either. The ship's premium buys the ride out to downtown, which at this terminal is not nothing.
Why it's worth considering
Two hours seated covers more ground than four hours walking, and Boston's sights are genuinely spread out.
The river section of the duck tour is the only water-level view of the skyline most people get.
The catch
Nine steps and no wheelchair access rules the duck out for part of the audience it's often recommended to. Read the access notes before you book it as the easy option — the trolley is the gentler choice.
Verify before you book
- Accessibility for anyone in your group, since the duck tour has real boarding steps
- Whether the trolley ticket you're buying is hop-on-hop-off or a fixed loop
- Departure points, which are downtown rather than at the terminal for independent bookings
Boston's best trick is how close the airport is.
Logan sits roughly 7 miles from Flynn Cruiseport — a car covers it in 15 to 30 minutes, depending on the tunnel. That's unusually kind for a cruise homeport.
Which means the real question isn't how you get there — it's what to do with six hours and two suitcases before your flight.
Norwegian answers it directly, with two products. Boston Observation & Scenic Boston — Ending At The Airport runs 3.5 hours at $189.99. Boston By Land & Sea — Ending At The Airport runs 4 hours, at $189.00 for adults and $179.00 for children.
The line's own listing is specific about the clock. Domestic flights after 3:30pm, international after 4:30pm.
The cheap version exists too. Boston Water Taxi runs a cruise-day service that shuttles you from the terminal to Rowes Wharf and stores your luggage there while you go into town — then puts you on a water taxi to Logan, with a free shuttle to the terminal door.
The operator publishes no fare in readable text. One cruise-port guide puts the plain water-taxi crossing at $25 an adult and $10 a child, around 20 minutes.
- Time commitment
- 3.5 to 4 hours for Norwegian's airport-ending tours, on the line's own listings.
- Getting there
- Car, roughly 15 to 30 minutes. Water taxi, around 20. SL2 to Silver Line Way, then SL1 to the terminals, for the price of a subway fare.
- Suits
- Disembarkation day, only. This is the card for someone with a boarding pass and nowhere to put their bags.
- Ship or independent
- Lean ship if your flight is late enough to use the tour and your bags are many. Independent if you're happy wheeling a case around for a few hours.
Why it's worth considering
An airport-ending tour is the only product in this port that solves luggage and time in one line item. That's a real thing to buy.
At Boston's distances, it buys you the whole day rather than the whole day's anxiety.
The catch
The flight-time rule is a hard gate, not a suggestion.
Norwegian's own listing says a flight assigned through its air program that clashes with the tour's end time may force a cancellation — so confirm your times before you buy, not after.
Verify before you book
- Your actual flight time against the line's published 3:30pm and 4:30pm cutoffs
- Whether luggage is carried on the tour or stored, in writing, before you book
- The water taxi's current cruise-day fare, which its own site doesn't publish
04
Ship tour or on your own, at a port that's both a start and a stop
Boston asks a different question than most ports — because the thing the ship is selling you here is mostly the bus.
What the premium actually buys
Compare the two Freedom Trail products directly. The Freedom Trail Foundation charges $17 for 90 guided minutes, across 11 of 16 sites. Norwegian charges $169.99 for 3.5 hours.
The gap isn't guiding quality — it's transport from a terminal two miles from the trailhead, plus the line's promise to get you back.
That promise is worth something on a port day with a hard all-aboard. It's worth much less on a boarding day — the ship isn't going anywhere without you.
Where independent wins outright
Anything on the Freedom Trail, Faneuil Hall, the North End, the Seaport, and Fenway. All of it is reachable on a $2.40 fare — and most of it is free, or under $20 at the door.
Shore Excursions Group runs a real Boston port page with around 20 priced tours — an Old Town Trolley ticket at $69, a Tea Party museum pass at $49, walking tours from $40. That's the middle ground, not a third version of the ship's desk.
Where the ship earns it
Salem in October, when the town is genuinely overwhelmed and a missed ferry is a missed ship. Anything ending at Logan on disembarkation day. And a whale watch on a short call — where the line owns the return time, not you.
The one thing neither side fixes
Boston is a walking city, and this is not a walking terminal. Whatever you book, budget 30 minutes and a fare at each end of your day — and don't let anyone's talk of a compact, strollable city convince you otherwise.
How each option compares in Boston
| Your Boston day | The ship's version earns it when… | Do it yourself when… |
| Getting out of the terminal | Rarely — you're paying a tour premium for a bus ride you can buy for $2.40 | Almost always. The SL2 stop is about a block away |
| The Freedom Trail | Your call is short and you want the return time owned for you | Nearly always — the trail is free and the Foundation's guided walk is $17 |
| Faneuil Hall and the North End | Almost never — no line we found sells this loop as its own product | Always. Faneuil Hall is free and the North End is a ten-minute walk on |
| USS Constitution | Only bundled into a wider city tour | Always, and check it isn't a Monday |
| Fenway Park | You'd rather not chain three T lines together | You're comfortable on the subway — the door price is $30 against $199.99 |
| Whale watch to Stellwagen | Your all-aboard is tight and you want the line responsible for the return | You have a full port day and want the Aquarium's own naturalists |
| Salem | You're calling in October, when the town is at capacity and roads close | Any other month — the ferry from Long Wharf runs about 50 minutes |
| The last day, with a flight | You have bags, a late flight and no plan — the airport-ending tours solve both | You'll store luggage and take the SL1, which is free in the other direction |
Short answer
Buy the bus fare, not the bus tour. Boston's best things — the Freedom Trail, Faneuil Hall, the North End, USS Constitution — are free or nearly free once you've solved the two miles, and the $17 guided walk beats the $169.99 one on everything but transport. Save the ship's booking for Salem in October and for the day your flight and your suitcases collide.
06
Boston port logistics: the terminal, the Silver Line and Logan
Where you dock
Flynn Cruiseport Boston, 1 Black Falcon Avenue, in South Boston's Seaport district. Massport owns and runs it — and it was renamed from the Black Falcon Cruise Terminal in 2017, after former mayor Raymond Flynn.
Ships tie up alongside. There's no tender step here, on our own Boston cruise port page and on every source we checked.
The terminal runs roughly March through November — and handled 370,312 passengers in 2023.
The walkability problem, stated plainly
Boston is one of the most walkable cities in America — and this terminal is not in the walkable part of it.
Downtown and the Freedom Trail sit roughly two miles away, with no pedestrian-friendly route between. The Seaport boardwalk — 15 to 25 minutes on foot — is the one direction that genuinely works.
The Silver Line
- The MBTA stop is named Design Center and Black Falcon Avenue; one port guide puts it about a block, or 0.2 miles, from the terminal at 29 Drydock Avenue
- The SL2 runs to South Station in roughly 15 minutes
- The MBTA's own fares page prices SL1, SL2 and SL3 as subway fares — $2.40 one way
- One widely read cruise-port guide still quotes $2.75 — two sources, two numbers, so carry a contactless card
- Since September 1, 2026 transfers between bus, subway and ferry are unlimited inside a two-hour window on the same payment method, charged at the highest fare in the trip
- Service from Logan Airport on the SL1 is always free; transfers from the Red Line toward Logan are free too
Taxis and rideshare
Our own destination page puts a rideshare downtown at roughly $12 to 18, and 10 to 15 minutes. Boston Discovery Guide says $20 to $30 plus tip — same trip, different number.
We're not averaging those. Check the app before you commit — and expect the higher end on a multi-ship day, not the lower one.
Logan Airport
Roughly 7 miles from the terminal — 15 to 30 minutes by car, depending on the tunnel. Water taxi crossings run around 20 minutes.
The cheap route is the SL2 to Silver Line Way, then the SL1 to the terminals. Remember the free direction is inbound from the airport, not outbound to it.
Fall foliage, and why Boston's timing is different
Boston sits at the southern, coastal end of the New England foliage circuit — so it turns late. One Boston guide puts peak in roughly the third week of October, give or take a week or two on the weather.
Inland and higher-elevation Massachusetts — the Berkshires, the Mohawk Trail — peaks earlier. The coast lags behind it.
Any of that is a forecast, not a promise. If foliage is the reason you booked, a late-October Boston call is the better bet — not an early-October one.
Entry and documents
Boston is a domestic US port. No passport, visa or entry document is needed to be aboard here — whether it's your embarkation point or a mid-cruise call.