Southeast Asia has fascinated avid scuba divers for decades, especially since it’s home to one of the most important reef systems in the world, the Coral Triangle, a marine area located in the western Pacific Ocean. The triangle is home to the largest diversity of coral reefs and fishes in the world (about 30 percent of the ocean’s corals), all of which are found in the waters of Indonesia, Malaysia, the Philippines, Papua New Guinea, Timor Leste and the Solomon Islands.

The Coral Triangle nurtures six of the world’s seven marine turtle species and more than 2000 species of reef fish and encompasses portions of two biogeographic regions: the Indonesian-Philippines Region, and the Far Southwestern Pacific Region. It’s been nicknamed “the Amazon of the ocean” for a reason, after all.

Here, we break down some of the Coral Triangle’s best diving spots so you’ll know where to get started.