Raja Ampat, in the remote West Papua region of Indonesia, holds the richest marine biodiversity ever recorded. Located at the heart of the Coral Triangle, this labyrinth of over 1,500 islands is home to more than 1,300 species of fish and around three-quarters of all known coral species. Diving here means drifting over reefs so full of life they seem to overflow, from tiny pygmy seahorses to schooling reef sharks and manta rays. For many divers, Raja Ampat is simply the finest reef diving on the planet.
What makes it special
The sheer diversity is the headline. Nowhere else packs so many species of fish and coral into one region, the result of powerful currents that flow between the Pacific and Indian Oceans, feeding the reefs.
Above water, the karst islands and hidden lagoons are just as breathtaking, making Raja Ampat a destination for landscapes as much as for diving. Its remoteness has also helped protect it, and much of the region now falls within a network of marine reserves that keep the reefs thriving.
Marine life you may see
The list is almost endless: manta rays at cleaning stations, wobbegong and epaulette sharks, schooling barracuda and fusiliers, and reefs blanketed in soft coral. Macro life is world-class, with pygmy seahorses, nudibranchs and ghost pipefish.
Some sites host mangrove and jetty dives that add another layer of color. Every dive here tends to reveal something you have never seen before.
Level and conditions
Raja Ampat has dives for many levels, but its stronger sites feature significant currents that suit experienced divers. Good buoyancy protects the delicate reefs and helps you enjoy drift dives comfortably.
Water is warm and clear, though visibility varies with the plankton-rich currents that also make the reefs so productive. Many sites are best explored with a reef hook and a calm approach.
Best time and how to reach it
The best diving season runs roughly October to April, when seas are calmest. You reach Raja Ampat by flying to Sorong in West Papua, usually via Jakarta or Makassar, then taking a boat to a resort or liveaboard.
Because it is remote and spread across many islands, most divers explore it on a liveaboard to reach the widest range of sites.
Biodiversity on your doorstep
Raja Ampat celebrates a living, protected reef, and the same values guide diving in Colombia. Isla Fuerte holds some of the best-preserved reefs of the continental Caribbean, and Nautilus actively restores coral and monitors reef health with Reef Check.
You can dive Bajo Bonito, where coral restoration meets a sunken Zenú museum, in warm 27 to 29 degree water. See it on our interactive dive map.
