Staghorn Reef

Staghorn Reef is a reef dive site on the east side of Racha Yai Island, Thailand, situated in the Bay 3 area. The reef was hit hard by coral bleaching in 2010 and is now showing genuine signs of recovery, with large staghorn coral formations characterising the terrain. Maximum depth reaches 30 m, and the site is considered suitable for beginners.

The reef holds a strong cast of resident marine life, including Pharaoh cuttlefish, octopus, giant clams, moray eels, lionfish, snappers, fusiliers, yellowtail barracudas, scorpionfish, sea moths, Moorish idols, butterflyfish, sea snakes, porcupine fish, puffer fish, anemones, and clownfish. Visiting olive turtles and manta rays have also been recorded here, along with titan triggerfish. Visibility is generally good, with the best conditions running November through April. Water temperature sits between 27–30 °C.

Currents can run strong, particularly on a rising tide, and there is a risk of being carried into open water if conditions are underestimated — divers should avoid diving on a rising tide. Despite this, the site is rated for beginners when currents are manageable. Access is by boat from Chalong Pier, Phuket, with Racha Yai reached on a day-trip basis.