On the eastern side of Man-O-War Bay, this reef is accessible only by boat. The rocky shoreline extends underwater to house branching and bouldering corals on submerged rocks and abundant fish life seeking refuge between the reef and the rocks.
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.
Little Tobago is the larger island located in Speyside Bay. This island is home to marvels both above and below the water including one of the largest brain corals in the Western Hemisphere. Coral reefs encircle Little Tobago. The island is an important nesting site for marine birds, including the Red-billed Tropic Bird.
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.
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.
Hermitage reef lies along the eastern side of Man-O-War Bay, Charlotteville, adjacent to Hermitage Bay. With no coastal development nearby, this coral reef is home to the endangered branching Elkhorn corals in the shallows. Farther down the reef slope, giant mountain star coral colonies extend from 7 m to 15 m in depth, creating underwater structures for numerous marine creatures.