The 15 acres (6.1 ha) island makes Mamutik the smallest of the park. Despite being the smallest, the island offers some good beaches and coral reefs. It also has a jetty and staff quarters for Rangers station. Facilities include changing rooms, toilets, picnic shelters, tables and barbecue pits. Mamutik would be an ideal venue to get away from it all. The corals to the north-eastern tip of the island are quite interesting.