Several islands are scattered around two prominent hilly islands, Bohgaya Island and Boheydulang Island, which surround the edge of an ancient volcano submerged by sea water. The two islands are located in the northeastern direction of Semporna, and six smaller islands around them are included in Tun Sakaran Marine Park by Genbu. Outside the Dunshakalan Ocean Park, further east and southeast of Bogaya, are several small flat sandy islands dotted with the clear Sulawesi Sea, including Pom Pom Island, Pandanan Island, Timba-Timba Island and Mataking Island. There are two diving resorts on Bongbang Island, one of which is large and well equipped, and provides Spa services, the other is a simple hotel.