Australia and New Zealand, plus roughly ten thousand islands scattered across a third of the planet's surface — Oceania is mostly ocean, and the distances between its countries are unlike anywhere else.
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Every country and territory, the most visited cities and a selection of the UNESCO World Heritage Sites in Oceania.
The Great Barrier Reef, the Outback, iconic Sydney Harbour and some of the world's best surf beaches — Australia's sheer scale and natural variety are simply staggering.
Middle-earth come to life — towering fjords, geothermal wonders, bungee jumping birthplace and some of the most spectacular hiking trails on the planet.
A US territory in Polynesia and the only part of the United States south of the equator, with the National Park of American Samoa spread over three islands of rainforest and reef.
An Australian territory closer to Java than to Australia, where tens of millions of red crabs migrate to the sea each year in one of the great wildlife spectacles.
Two Australian coral atolls in the Indian Ocean with a Malay Muslim population, twenty-seven islands and almost no visitors.
Fifteen islands in free association with New Zealand, with Rarotonga's mountainous interior and the Aitutaki lagoon regularly called the most beautiful in the Pacific.
Four states across 600 islands, including Chuuk Lagoon's sunken Japanese fleet and the basalt city of Nan Madol built on artificial islets off Pohnpei.
Three hundred islands, of which about a third are inhabited, with soft-coral diving, the Yasawa chain and a kava-drinking welcome that visitors remember longest.
Tahiti, Bora Bora and the Tuamotus — 118 islands across an area the size of Europe, with overwater bungalows in the lagoons and Marquesan archaeology in the north.
A US territory and the Pacific's main air hub, with Spanish colonial forts, war memorials from the 1944 recapture, and reef diving off Apra Harbor.
Thirty-three atolls straddling the equator and the date line, among the most exposed countries on earth to sea-level rise, with the vast Phoenix Islands marine reserve.
Twenty-nine atolls including Bikini, where nuclear testing left a lagoon full of sunken warships, and Kwajalein, the largest lagoon on earth.
The world's smallest island nation at 21 square kilometres, stripped by a century of phosphate mining, with a single road around the perimeter.
A French territory with the world's second-largest barrier reef, a lagoon on the World Heritage list, and a Kanak culture distinct from the French settler population.
One of the smallest countries anywhere, a single raised coral atoll in free association with New Zealand, where humpback whales come close enough to swim with.
A tiny Australian external territory in the Tasman Sea, settled by Bounty mutineers' descendants from Pitcairn, with its own language and convict-era buildings.
A US commonwealth including Saipan and Tinian, with wartime history, limestone caves and the Mariana Trench — the deepest point on earth — offshore.
Jellyfish Lake, the Rock Islands and the wreck-strewn reefs make Palau one of the world's top dive destinations, and it protects 80 per cent of its waters.
Over 800 languages, the Kokoda Track, Sepik river art and birds of paradise — the most culturally diverse country on earth and one of the least travelled.
Four islands with fewer than fifty residents, all descended from Bounty mutineers, reached by a supply ship from Mangareva a few times a year.
The heart of Polynesia, with To Sua ocean trench, Robert Louis Stevenson's house above Apia, and a fa'a Samoa way of life still ordering daily village routine.
Nearly a thousand islands, with some of the best wreck diving in the world in Iron Bottom Sound, where dozens of ships sank during the Guadalcanal campaign.
Three atolls in free association with New Zealand, with no airstrip at all — reached only by a boat that runs every couple of weeks from Samoa.
The only Pacific nation never colonised, with a monarchy still in place, humpback whales that calve in its waters, and blowholes along the Tongatapu coast.
Nine low atolls averaging two metres above sea level, whose airstrip doubles as the village green between the twice-weekly flights.
Scattered uninhabited US islands, mostly Pacific — Midway, Wake, Baker — that are wildlife refuges, war graves and almost impossible to visit.
Eighty-three islands with active volcanoes you can walk to the rim of, land diving on Pentecost that inspired bungee jumping, and the wreck of the SS President Coolidge.
A French territory of three main islands with the most traditional Polynesian society in the region, where customary kings still hold authority alongside French administration.
Two countries take almost all the visitors. Australia is a continent in its own right, where Sydney to Perth is further than London to Moscow and the interior is emptier than most people picture. New Zealand fits the same variety into a country the size of Britain — glaciers, fjords, volcanoes and vineyards within a day's drive of each other, which is why it absorbs so many two-week itineraries.
The Pacific islands are the other Oceania, and they divide three ways. Melanesia — Papua New Guinea, Fiji, Vanuatu, the Solomons — is the largest and most culturally diverse region on earth per head, with over 800 languages in PNG alone. Polynesia stretches from Hawaii to New Zealand by way of Samoa, Tonga and French Polynesia. Micronesia's atolls, Palau and the Marshalls among them, hold some of the best diving anywhere, much of it over wrecks from the Pacific war.
Getting between them is the hard part. Flights route through Nadi, Auckland or Brisbane, run once or twice a week, and cost more than the distance suggests. Cyclone season runs November to April across most of the tropics, and the smaller nations have very little infrastructure once you leave the main island. Plan one region, not the ocean. How many have you made it to?
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