This video provides a fascinating look at the remains of the Katajima Torpedo Test Site (片島魚雷発射試験場跡) in Kawatana Town, Nagasaki Prefecture. Known as one of Japan’s lesser-known war relics, the site gained recent attention for its appearance in the animated film ‘The Boy and the Beast’ (バケモノの子). Now overtaken by nature, the site serves as a powerful reminder of both wartime history and the enduring passage of time.

The tour begins with an introduction and a scenic overview of the ruins, followed by a close-up look at the remains of the air compression pump station (空気圧縮ポンプ所). This structure played a crucial role in preparing torpedoes for test launches and demonstrates the ingenuity of Japan’s wartime engineering. The video also guides viewers through the torpedo launch area, where test firings were conducted into the waters off the coast.

Surrounded by encroaching greenery, the site offers a stark contrast between its wartime purpose and its current tranquil state. Located in Kawatana (川棚町), easily accessible from other major destinations in Nagasaki, the ruins have become a point of interest for history buffs, anime fans, and travelers seeking offbeat destinations in Japan. Aside from its historical background, the Katajima Torpedo Test Site also provides visitors with sweeping views of the surrounding coastline, making it a notable destination for those exploring Kyushu’s historical and natural sites.