The best diving spot in the Philippines and one of the most biodiverse on Earth. This UNESCO World Heritage Site in the Sulu Sea is home to 600+ fish species, 360 coral species (50% of world's coral species), 11 shark species (tiger, hammerhead, whitetip, reef), 13 dolphin/whale species, whale sharks, manta rays, and countless macro life. Only accessible by liveaboard (February–June). Amos Rock is the crown jewel—a gorgonian-covered wall with massive fish schools.