A sailing trip across Australia's wild western frontier

In pursuit of adventure Kendall Hill joins a cruise on Seabourn Pursuit along Western Australia's Kimberley coast, where natural wonders, ancient Aboriginal art and animal encounters make for an unforgettable trip

Red sandstone is found throughout the Kimberley region, including at King George Falls.

John Shedwick

In this case, Seabourn. Its 132-suite vessel Pursuit has been purpose-built for just such expeditioning, with almost 2,800 metres of open deck space, 24 Zodiacs for marine adventures and continental landings, and sundry other high-tech innovations and toys to discover.

Life on board is defined by comfort. Suites are generous, from Wintergarden duplex apartments and Signature suites, both with whirlpool tubs, to Veranda suites with customised minibars, walk-in wardrobes and Swarovski binoculars. There is a fitness centre and spa, eight restaurants and bars - the latter usually involving some form of live music. At the sleek coffee shop on deck six, there is even a counter for collecting orders placed on the ship's very own app. It is all very civilised, in stark contrast to the wilderness outside.

Snorkelling over Ashmore Reef is a memorable experience.

John Shedwick

Hunter River's dense mangroves.

John Shedwick

Daily outings led by the expedition team take us onto the Indian Ocean and Timor Sea to witness phenomena such as the Horizontal Falls, where tidal currents surge through a narrow gorge of 1.8-billion-year-old sandstone escarpments. Described as one of the greatest natural wonders of the world' by Sir David Attenborough, the upcurrents and whirlpools toss our Zodiac about like debris in a drain. The Falls are in the Lalang-gaddam Marine Park, a humpback nursery where some 40,000 whales give birth each winter.

At nearby Montgomery Reef, we make a dawn sortie to witness Australia's largest inshore reef reveal itself in an ebbing tide, cascades pouring from its flanks as seabirds and turtles feast on fleeing fish. These are the territories of Dambimangari man Adrian Lane, part of the ship's team, who shares cultural insights as the drama unfolds around us.

The reef's habitats are brimming with biodiversity.

John Shedwick

A saltwater crocodile.

John Shedwick

Elsewhere on this 10-day itinerary between Broome and Darwin (which is also offered in reverse), we see millennia-old wandjina spirit paintings on a sandstone overhang at Widgingarra Butt Butt (Freshwater Cove). Worrorra guide Neil Maru explains the significance of these rainmaker spirits and the other creatures - including a dragonfly, turtle and dugong - rendered in ochre here by his forebears.

There are various saltwater safaris: along the Hunter River to marvel at dense mangrove forests and menacing crocodiles; through the sandstone canyon of King George River where dolphins arc and twin waterfalls crash down from 100-metre-high red cliffs; and to the Kuri Bay pearl farm, where some passengers enjoy scenic seaplane flights and others drop small fortunes on shimmering Paspaley jewellery. There is also the almost illicit thrill of snorkelling at the edge of Australia at Ashmore Reef where, 227 kilo-metres off the continent, we find a submarine wonderland of coral gardens and kaleidoscopic fish.

A giant clam at Ashmore Reef.

John Shedwick

The brahminy kite, or red-backed sea-eagle, is among the birds that have been seen on Hidden Island (also known as Banggoon).

John Shedwick

At the end of every adventure there is always some form of floating bar dispensing Champagne and a sunset the likes of which you will never see again anywhere but here, in one of Australia's - and the world's - wildest frontiers.

Ways and means

The 10-Day Kimberley Expedition: Waterfalls & Wandjinas on Seabourn Pursuit costs from £7,904 per person, based on two sharing a Veranda suite, all-inclusive.