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North Twin

Dive Location:  36km to the south of Black Rock.
Depth: Average 15m / Maximum 22m

A wide plateau at 20m, covered by numerous hard and soft corals, crinoids and small reef fish. Eggshell and tiger cowries sit on display, while small groups of goatfish fidget about between the rocks and over the coral substrate bottom. Juvenile harlequin sweetlips are in evidence, and around one particularly compact cluster of sea fans, schools of checkerboard wrasse and small fish fry congregate.

There are larger table corals and porite mounds dotted with multicoloured plume worms, and below the mounds crayfish concealed in darker overhangs. Parrotfish, spiny foot and dog-faced pufferfish have also taken up residency. The waters away from the island appear to be part of one of the many routes for great barracudas and small white-tip reef sharks. The barracuda in particular often come in close to check out divers and on occasion escort them round the site.

For featured dive centres

• Phuket
• Khao Lak

Golden wentletrap laying eggs

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