HIJMS Nagato

The battleship Nagato was Admiral Yamamoto's flagship when the Pearl Harbor operation was set in motion, which gives her afterlife at Bikini a heavy symmetry: assigned as a target for the 1946 tests, she absorbed the Baker blast and sank quietly a few nights later. She lies upside down, hull toward the surface, and the classic tour runs to the four enormous propellers standing in file off the stern, one of technical diving's defining photographs. Under the flared bow, teams can sight the muzzles of sixteen-inch guns pressed toward the sand. Depth, orientation, and history demand, and receive, complete seriousness.

اللحظة التي جئت من أجلها: The four propellers; 41-cm gun muzzles beneath the inverted bow; the flagship connection to December 1941.

التضاريس: Capsized hull resting on its superstructure at roughly 50 m

نقطة الدخول: Expedition diving only, planned as a decompression dive from the first briefing.

المخاطر: Working depths beyond 45 m with mandatory decompression; confined inverted spaces; absolute remoteness from medical care.

الحفاظ على البيئة البحرية: Within the UNESCO-listed test site and treated with memorial respect; nothing is removed, and penetration follows expedition protocols only.