Dive-site story
Situated on the northern side of Koh Racha Yai, Siam Bay features a wide sandy seabed dotted with patch reefs and deliberate artificial installations. Divers frequently head out to locate the submerged concrete statues, including large guardian figures and life-sized elephants sunk to relieve pressure on natural reefs. The bottom slopes gradually away from the sheltered beach into deeper water, providing an uncluttered navigation route over open sand where benthic species often hide.
Submerged elephant statues and mythical guardian figures resting on the sand
Expansive sandy flats sheltering benthic marine species and camouflaged flatfish
Calm, protected bay conditions well-suited for training and relaxed check dives
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
The northeast monsoon brings the calmest seas and best underwater visibility to this northwest-facing bay.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blue-spotted stingrayNeotrygon kuhlii | Common | ||||||||||||
| Longfin batfishPlatax teira | Common | ||||||||||||
| Broadclub cuttlefishSepia latimanus | Common | ||||||||||||
| Blackspotted pufferfishArothron nigropunctatus | Common | ||||||||||||
| Zebra morayGymnomuraena zebra | Seasonal |
Marine forecast
