The South Pacific

The expedition gathers in Fiji, where the far Pacific begins. Three days on the Coral Coast to acclimatize (to the heat, the water, and the pace of island time) with a boat transfer across the lagoon to our base above the reef. A village kava ceremony marks the traditional welcome and sets the register for the weeks ahead, and the first snorkelling runs through the coral cathedrals of the lagoon: canyons and swim-throughs of hard coral in water warm as breath.

Fly east to the Kingdom of Tonga: the only Pacific nation never colonised, and in these months, the nursery of the humpbacks. Each day is built around whale-swim excursions, conditions permitting: guided, in small groups, slipping into blue water as the whales rest and breach and sing. Between excursions the days explore limestone sea caves lit from below, freshwater pools sunk in the coral rock, and an evening of traditional canoe navigation at sunset, steering by swell and star as Tongans always have.

Two days in Samoa, the heart of Polynesia, where fa'a Samoa (the Samoan way) still orders every village green. We cross Upolu's lava fields and hike into the rainforest of the interior, then descend the long ladder into the To Sua Ocean Trench, an emerald swimming hole sunk deep in the lava coast and fed by the sea. The second evening belongs to a village umukai (a feast lifted steaming from the earth oven) followed by a storytelling night under the fale, where Samoa's history is kept out loud.

Into Melanesia. On Tanna the ash plains spread grey and lunar beneath Mount Yasur, and by late afternoon we are climbing it. The night ascent puts us on the crater rim after dark, when the mountain's constant eruptions throw molten rock against the stars and each detonation arrives through the soles of your feet. By day, the island's kastom villages (communities that have chosen to keep the old ways) receive us on their own terms, an access built on years of relationship rather than a ticket.

North to Pentecost Island, home of the Naghol: the land dive, the ancestral vine-jump ritual from which bungee jumping was born. Our time with the land-diving towers and the ritual world around them is arranged with the villages and subject to the ceremonial calendar: sometimes a jump, always the towers, the kastom and the stories of the men who leap. Around the ritual, the days trek Pentecost's forest ridges and wild coastline, an island where almost no outside traveller sets foot.

The final six days push to the edge of the Pacific. The Solomons sit on the same humpback corridor as Tonga, and we build in further whale excursion days on water almost nobody watches. Between them: snorkelling the WWII wrecks that made these islands famous (fighters, freighters and whole fleets resting in shallow, glass-clear water) island-hopping by motor-canoe through the lagoons, and rainforest-to-reef days that begin under the canopy and end on the coral. The nights are community-led village stays, and the expedition closes in Honiara for onward flights.