| Gahirmatha Marine Sanctuary | |
|---|---|
IUCN category IV (habitat/species management area) | |
   | |
 Interactive map of Gahirmatha Marine Sanctuary | |
| Location | Odisha,India |
| Nearest city | Chandbali |
| Coordinates | 20°34′N86°50′E / 20.57°N 86.84°E /20.57; 86.84 |
| Area | 1,435 km2 (554 sq mi) |
| Established | 1997 |
Gahirmatha Marine Sanctuary is a marinewildlife sanctuary in the Indian state ofOdisha, extending from theDhamra River mouth in the north toBrahmani river mouth in the south.[1] It is the world's largest and most important nesting beach forolive ridley sea turtles.[2]