Dive-site story
Submerged granite domes rise off the southern tip of Koh Tachai, forming a dynamic offshore plateau subject to energetic currents. Divers descend along mooring lines to granite boulders blanketed with sea fans, feather stars, and fields of hard corals. The open-ocean location draws pelagic species that patrol the perimeter while dense schools of trevally hunt along the reef crest.
Pelagic action featuring manta rays and oceanic sharks circling the rocky outcrops
Expansive sea fans and soft corals coating deep granite ridges
Massive swirling schools of chevron barracudas and bigeye jacks
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
The marine national park is only open to divers during the dry northeast monsoon, with peak pelagic activity occurring late in the 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 | ||||||||||||
| Chevron barracudaSphyraena qenie | Common | ||||||||||||
| Bigeye trevallyCaranx sexfasciatus | Common | ||||||||||||
| Whitetip reef sharkTriaenodon obesus | Common |
Marine forecast
