The word 'Kaiten' literally translates to 'return to the heavens' or 'the turn towards heaven'.
Otsushima Island was selected for the training base due to its remote location and calm, deep waters suitable for submerged torpedo practice.
The museum displays actual suicide notes left by pilots, providing a firsthand perspective on their state of mind before missions.
Approximately 100 pilots died during the Kaiten missions, with the program officially ending at the conclusion of the war in 1945.
The facility was established to ensure the historical experiences of the Kaiten corps are not forgotten by future generations.
The Shunan City Kaiten Memorial Museum is located on Otsushima Island and serves as a dedicated archive for the history of the Imperial Japanese Navy's Kaiten human torpedo program. The museum is built on the site of the former Otsushima training base, where volunteers underwent specialized suicide-mission training during the Pacific War. It houses original letters, personal belongings, and photographs left by the young pilots. The facility also features a full-scale model of a Kaiten torpedo to illustrate the cramped conditions inside the vessel. Through its exhibits, the museum documents the final training period of these sailors before their deployments. The surrounding area includes remnants of the original training infrastructure, such as tunnel ruins and storage areas.
The full-scale Kaiten torpedo replica displayed near the museum entrance provides the most significant visual context.
Wear comfortable walking shoes as the surrounding historical site involves navigating paths around the island.
Check the local ferry schedule in advance, as the island is only accessible by boat from Tokuyama Port.
Budget extra time to walk the short trail to the nearby ruins of the training base facilities.
Do not attempt to visit without checking local ferry status, as adverse weather frequently causes cancellations.
Closed on Mondays and during the end-of-year holiday period.
Maintain a quiet and respectful demeanor throughout the facility, as the museum functions as a war memorial.
