Dive-site story
Koh Bon sits north of the main Similan chain, characterized by perforated limestone cliffs and a submerged western ridge that drops off into open water. Ocean currents sweeping past the point concentrate plankton, making it one of the premier cleaning stations in Thailand for pelagic visitors.
Reliable cleaning station for oceanic and reef manta rays along the western ridge
Dramatic limestone wall topography covered in yellow soft corals and sea fans
Frequent encounters with schooling pelagics including barracuda, trevally, and rainbow runners
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
The national park is open from mid-autumn through late spring, with peak manta sightings typically occurring during the late dry season.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reef Manta RayMobula alfredi | Seasonal | ||||||||||||
| Whale SharkRhincodon typus | Rare | ||||||||||||
| Leopard SharkStegostoma tigrinum | Common | ||||||||||||
| Chevron BarracudaSphyraena qenie | Common | ||||||||||||
| Malabar GrouperEpinephelus malabaricus | Common |
Marine forecast
