Nippo Maru

The Nippo Maru is the lagoon's cabinet of curiosities, a freighter that went down loaded for garrison resupply. A light tank still perches on the deck, gun barrels and howitzer carriages lie nearby, and the holds carry water tanks, shells, and crates that have fused into single rusted masses. The bridge is the famous frame: helm and engine telegraph standing in open water, instruments legible under the growth. Everything interesting sits below 30 m, so this is a dive of choices made quickly and gas watched closely — the wreck teaches discipline as surely as history.

您此行的高光时刻: The deck tank; the standing bridge telegraph and helm; artillery pieces and garrison cargo in the holds.

地形地貌: Hull with a list to port on lagoon floor at roughly 48 m

入水方式: Descend the mooring to the bridge and plan the dive around limited bottom time.

危险因素: Depth is the governing hazard; narcosis at working depth; munitions in the holds; short no-deco windows invite overstay.

保育: Protected historic site; the artifacts photographed today exist because previous divers left them — extend the same courtesy.

高氧（Nitrox）: 在此值得使用——各潜点深度落在富氧空气（nitrox）能有效延长免减压时间的区间（前提是持有相应认证）。