Expedition Cruises, DecodedThe Kimberley

The Kimberley is Western Australia's vast, roadless northwest — a coastline of some 800 islands, red sandstone gorges, and mangrove-lined rivers so remote that a ship or a light aircraft is the only way in. It's fair to call it one of the last great wildernesses on Earth: no roads reach most of it, phone signal disappears within hours of leaving Broome or Darwin, and the tides here are among the most extreme on the planet, regularly swinging up to 12 meters between high and low. Those tides aren't a footnote — they're the whole engine behind the region's signature sights.

What makes it stand apart from everything else on this page is the climate. There's no ice-class hull, no Drake Passage, no polar wardrobe. Days run warm — often into the 90s°F — under a hard tropical sun, and the “expedition” part comes from the terrain and the tides rather than the temperature. It's the same category, the same small ships and Zodiacs and expert guides, wearing entirely different clothes.

Saltwater crocodiles — the largest living reptile on Earth — are common throughout the Kimberley's rivers, mangroves, and estuaries. Sightings from the tender or Zodiac are routine, not rare; some rivers, like the Roe and Hunter, are specifically known for having among the highest crocodile counts in the region, and expedition crews point them out matter-of-factly, the way an Alaska guide points out an eagle. Swimming happens only in specific, guide-checked locations — a waterfall plunge pool, a designated swimming hole — never casually in open water. This isn't a formality. It's the single most important safety briefing you'll get on the trip, and it's worth listening to closely.

Beyond the crocodiles: humpback whales migrate along the coast later in the dry season, dolphins and dugongs work the reefs and bays, sea eagles and ospreys hunt overhead, and short-eared rock wallabies pick their way across the sandstone cliffs. Barramundi fishing is practically a Kimberley institution in its own right — several operators build entire excursions, and on the luxury end, entire helicopter trips, around it.

Included on essentially every ship: twice-daily tender and Zodiac excursions to waterfalls, gorges, and wildlife-rich waterways, guided bushwalks to swimming holes and lookout points, and visits to significant Aboriginal rock art sites — the ochre Wandjina figures and the older, finer Gwion Gwion (Bradshaw) paintings, among the oldest rock art traditions on the planet, presented with real cultural context from Traditional Owner partnerships that most operators maintain.

Distinctly Kimberley: barramundi and reef fishing from the tenders, often with gear supplied. Usually extra, and worth it on the right ship: helicopter flights over Mitchell Falls, remote rock art, or the Buccaneer Archipelago — a true Kimberley specialty, offered as full excursions or even “heli-fishing” trips to spots no boat can reach. A handful of operators fold helicopter time into the fare; most sell it as a premium add-on, and it's one of the few splurges on this entire twelve-destination list that regularly gets described as worth every dollar.

A standard 7-to-13-day voyage between Broome and Darwin (or the reverse) typically runs $7,000 to $20,000+ per person, depending heavily on ship and whether helicopter time is bundled in. Mid-range operators sit toward the lower end of that range; luxury lines like True North and Seabourn Pursuit, especially with a helicopter package, run toward the top. Most fares include meals, tender and Zodiac excursions, and guided shore experiences — close to all-inclusive for a warm-weather destination.

Budget separately for a small but real Traditional Owners fee (roughly AU$265, subject to change), gratuities, and any helicopter flights or specialty fishing charters, which add up quickly if you go all-in on them. Most itineraries fly you into Broome or Darwin from a major Australian gateway city, and some operators bundle flights or offer credits toward them — worth asking about directly, since it can meaningfully change the all-in number.