Apo Reef two lagoon systems, the north and south lagoons which are bounded by narrow reef platforms. It is a almost triangular northern and southern atoll-like reefs separated by a deep channel that is open to the west. The channel runs east to west from deep with a fine white sand bottom, numerous mounds and patches of branching corals under the deep blue water. The north lagoon is an enclosed triangular coral reef platform partly exposed during low tide. It is relatively shallow with depths of about . While the south lagoon is an inverted triangular coral platform enclosed on two sides
Miri-Sibuti Coral Reef National Park diving locations and the largest offshore national park created in the state of Sarawak. The reefs house a wide diversity of marine creatures including soft corals like leather corals, sea whips, Bubble corals, staghorn corals, Dendronephthya and Gorgonia sea fans, as well as sponges including elephant ear spongees. Fish species include clown fish, yellow and blueback fusiliers, angelfish, butterfly fish, sea perch, lizardfish, batfish, jackfish, barracudas, Napoleon wrasse and sharks. Other creatures include feather stars, giant clams, nudibranches, anemones and sea horses. Miri-Sibuti Coral Reef National Park The Miri-Sibuti Coral Reefs National Park is a protected area of coral reefs