Akitsushima

Akitsushima is a large World War II Japanese seaplane tender lying on its port side, about 118 m long, offering a dramatic wreck dive with an intact crane, steel tracks where a plane once rested, a half-torn stern, multiple gun mounts and an engine room with four large engines. Schools of large fish such as groupers, barracuda and tuna commonly shelter around the structure and giant batfish are frequently seen near the crane, making marine life sightings a notable part of the experience. The wreck rests roughly between 22 and 38 m, with the superstructure beginning around 22 m and the deepest sections near 35–38 m. The site is boat-access only and requires a planned descent; visibility is generally good, water is warm year-round, and currents can be strong and unpredictable around the mast and crane. A typical dive starts at the bow and proceeds toward midship and the stern crane; the coral-covered hull and deck are explored first, and experienced divers may penetrate interior openings. Penetration requires proper wreck training (no swim-throughs without certification), and divers should carry lights and reels and beware of sharp metal and entanglement hazards. Because of the depth and conditions, the dive is suitable only for experienced, advanced-level divers and nitrox is recommended if available to extend bottom time. The ship was sunk by U.S. attacks in 1944 and now lies on the sea floor as a well-preserved seaplane tender wreck; notable vessel features include the crane used for lifting seaplanes, the steel tracks on deck, the partially torn stern and intact engine and armament spaces that can be observed along the wreck's length.