Dive-site story
Alhambra Rock is an offshore submerged pinnacle rising from a sandy seabed south of the Koh Samet archipelago in Rayong. Because the granite formation sits isolated in open water, it acts as a magnet for schooling pelagic species and reef fish. Large granite boulders form swim-throughs, overhangs, and crevices blanketed in sea anemones, branching sea fans, and encrusting sponges.
Submerged granite pinnacle structure attracting pelagic visitors in the open Gulf of Thailand
Schools of chevron barracuda and trevally circling the upper rock sections
Overhangs covered in whip corals, gorgonian fans, and sea anemones
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Dry northeast monsoon season brings the calmest seas and best visibility across Rayong's offshore waters.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chevron BarracudaSphyraena qenie | Common | ||||||||||||
| Yellowtail TrevallyAtule mate | Common | ||||||||||||
| Whale SharkRhincodon typus | Seasonal | ||||||||||||
| Clark's AnemonefishAmphiprion clarkii | Common | ||||||||||||
| Honeycomb MorayGymnothorax favagineus | Common |
Marine forecast
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