Phoenix Islands Protected Area
One of the largest marine protected areas on earth, eight atolls and open ocean.
Updated 16 October 2026
UNESCO World Heritage
The Phoenix Islands Protected Area covers around four hundred thousand square kilometres of the central Pacific, eight atolls and two submerged reefs with almost no human population and the surrounding ocean, inscribed by UNESCO in 2010 as one of the largest and least disturbed coral archipelago systems left. Only Kanton has any residents at all. Reaching it means an ocean crossing of days.
Background
The protected area was established in January 2008 and covers 408,250 square kilometres, about the size of California, yet its land adds up to only 25 square kilometres. It takes in three atolls with lagoons, Orona, Nikumaroro and Kanton, five low islands ringed by reefs, Manra, Rawaki, McKean, Birnie and Enderbury, and the submerged Winslow and Carondelet reefs. Below the surface lie 14 known seamounts, thought to be extinct volcanoes. About 800 animal species are known here, among them around 200 corals, 500 fish, 18 marine mammals and 44 birds. When UNESCO inscribed it in 2010, it became the largest and deepest World Heritage Site.
Source: Wikipedia, "Phoenix Islands Protected Area"
What's there
- The scale - around four hundred thousand square kilometres protected.
- The atolls - eight islands with almost no human population.
- The intact reef - among the least disturbed coral systems remaining.
- The 2010 inscription - the UNESCO listing of the whole area.
When to go
April to October is the calmer season for the crossing. Access is extremely limited in any month. Permits are required and rarely given.
Before you go
This is one of the hardest places on earth to reach: days of open ocean, a permit that is rarely granted, and no infrastructure whatsoever. Almost nobody goes. Coral bleaching has affected parts of the area severely.
Nearby
Kanton is the only inhabited island, and Tarawa is far west.
Key facts
Source: Wikidata, item Q863815, read on 18 October 2026.
What to pack for Phoenix Islands Protected Area
Chosen from what this place is for. Tap a kit for the full checklist.
- Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.