Tubbataha Reef, Philippines

Tubbataha Reef, a UNESCO-listed marine sanctuary in the Philippines' Sulu Sea, is hailed as Asia's premier diving destination. This remote atoll shelters 600+ fish species, 360+ coral types, and apex predators like tiger sharks. Its pristine reefs—accessible only by liveaboard boats—boast 100-meter visibility. Strict protection since 1988 preserves nesting seabirds and rare hawksbill turtles. A biodiversity hotspot and natural laboratory, Tubbataha exemplifies successful marine conservation in the Coral Triangle.