The second largest contiguous coral reef in the world after Australia's Great Barrier Reef, located off the coast of Sablayan, Occidental Mindoro. This protected marine natural park covers nearly 34 square kilometers of pristine reef teeming with sharks, manta rays, sea turtles, and over 500 species of fish. Liveaboard diving trips are the best way to explore this remote underwater paradise.
| Category | Nature |
| Province | Occidental Mindoro |
| Region | Region IV-B - MIMAROPA |
| Coordinates | 12.67070000, 120.47880000 |