Eastern Dam

One of the most best dive sites in Hongkong is the Eastern Dam of High Island Reservoir in Sai Kung Country Park. This large man-made wave barrier is nestled between cliff walls of hexagonal rock formations in the Sai Kung Geopark, providing an interesting topography for divers and snorkelers with its rich marine life.

Eastern Dam gives the image of a buried underwater city visited by large schools of damsels in distress and wispy sawtooth barracudas. The cement dolosses build caves, caverns, and bridges on top of each other and on the sandy seabed, providing home for shadow-loving species like squirrel fish, bigeyes, and sweepers.

Hermit crabs and yellow-footed rock carbs can both be found here. Sting rays have been spotted hidden in the shadows, and some quite large octopuses hunt in the region. Cave divers with line equipment have the option of diving deep into the crevices between the cement boulders. Anchoring is possible anywhere along the walls, although the diving on the western side is the most diverse. Spring and summer are the best times to dive here, however it may be done all year on any calm day without swell.

Location: Sai Kung, Hongkong

Depth: 28m