The reef fringes the eastern margins of Castara Bay extending from Heavenly Bay out of the bay. Castara reef is a popular for snorkelling with the rare branching Elkhorn corals close to the rocks. For divers, the reef is dominant in soft coral plumes that make perfect hiding spots for juvenile turtles.
CASTARA REEF, TOBAGO
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Along the south coast of Tobago are three dives sites. From east to west, they are Cove Reef, Flying Reef and Stingray Alley. Coral reefs in this area are gently sloping and exposed to high currents. These are the haunts of large schools of reef fish including grunts and chub.
Booby Island is located within the sheltered Man-O-War Bay at Charlotteville in northeast Tobago. It is named after the Brown Boobies that inhabit the rock. On one side a gently sloping reef dominant in sea plumes and corals connects the island to the mainland at Lover’s Bay; on the other side, divers can explore the submerged rock walls of the island.
Coral Gardens is a small patch reef located in the Bon Accord Lagoon in the Buccoo Reef Marine Protected Area. This is one of the better-known treasures of Buccoo Reef. It is visited daily by snorkelers and glass bottom boat tours. Coral Gardens in dominant in the reef building coral Orbicella annularis, also known as the potato coral, and hosts many reef fish.
Culloden Bay is home to a unique spur and groove coral reef formed by water movement. The growth of corals over time has created these rocky underwater spurs that project out to sea like fingers. Each spur is separated by a sandy groove where one can find turtles, eels and lionfish lurking.
Located north of Charlotteville, this island is a bird sanctuary and home to a number of nesting species, including the Magnificent Frigatebird and the Brown Booby. Coral reefs surrounding St Giles are exposed to high currents that form reefs dominant in brain corals that cover the shallow areas.
Mt Irvine Bay is a popular spot for surfing and diving in southwest Tobago. Mt Irvine reef, also known as the Flying Dutchman, extends out to the eastern headland. This fringing reef transitions from soft coral to hard coral as you move out from the bay. The back end of Mt Irvine reef is Mt Irvine Wall, which has a few swim throughs and overhangs where schools of fish hang out.

