Fiji
Coconut crabs own the forest floor here, and the fish have never learned to fear divers.
Vatu Vara rises from the northern Lau sea like a green hat: 1,200 acres of forest over karst limestone with a sheer summit at the crown. Nobody lives on it. Guests cross from the villas on neighbouring Kaibu for a managed day of forest, reef and beach.
The island is kept as a private reserve within the Vatuvara Private Islands estate, its accommodation standing on Kaibu next door. Coconut crabs, the largest land arthropods on Earth, dominate the forest floor, cracking fallen coconuts in their pincers, while on the reef endangered humphead wrasse show no wariness of divers, the mark of water that has never known constant fishing. Giant clams hold the shallows, and the estate's foundation runs species-awareness and anti-poaching work with the surrounding Lau communities. Access begins with a charter flight and a confirmed stay; independent landings are not offered.
Couple
A private-island stay whose crowning day is a reserve island to yourselves: forest walks under coconut crabs, a reef that has never been fished hard, a picnic on empty sand.
Solo
For a traveller who wants wilderness with the logistics dissolved, the estate handles everything from charter flight to reserve day; the only route in is a confirmed stay.
The kitchen works garden to table: line-caught fish plated with whatever the estate garden gave that morning.
Dinner at Valhalla runs to multiple courses above the ocean, and picnic hampers cross with you on reserve days.

Manuel Antonio
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Capuchins patrol the sand beneath dozing sloths where rainforest walks into the ocean.

Tortuguero
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Jungle canals where green sea turtles haul onto black volcanic sand under a moonless sky.

Akdamar Island
Turkey
A tenth-century Armenian church carved with biblical scenes floats alone on an island in Lake Van.

Praia do Rosa
Brazil
Right whales leave Antarctica to calve in this bay, and you watch from the headland.

Taveuni
Fiji
Stand astride the 180th meridian in rainforest, one foot in today, one in yesterday.

Suva
Fiji
South Pacific hustle where Hindu temples share streets with Fijian markets and colonial verandahs.

Levuka
Fiji
Fiji's first colonial capital frozen in the 1870s, wooden shopfronts sagging under tropical rain.

Kadavu
Fiji
Manta rays circle the world's fourth-largest barrier reef, off villages the road barely reaches.