The park's name refers to the 'Karasukojima' island, which was originally located here before being reclaimed and integrated into the shipyard complex.
The brick walls lining the park are original structures from the Kure Naval Arsenal, once the largest naval factory in the Orient.
Submarines moored here typically include the Oyashio and Soryu classes of the JMSDF.
The site was historically part of the restricted military zone and was only opened for civilian public access in the late 20th century.
The proximity to the pier allows visitors to see the varying paint patterns and surface details of active-duty submarines.
Alley Karasukojima is a waterfront park in Kure, Hiroshima, positioned directly opposite active Japan Maritime Self-Defense Force (JMSDF) submarine piers. The site serves as one of the few places globally where visitors can view operational military submarines from a distance of just a few dozen meters. The park preserves the brick architecture of the former Kure Naval Arsenal, featuring restored warehouse walls from the Meiji and Taishō eras. A prominent memorial statue honors the history of the Kure Naval District. The facility acts as an open-air historical space connecting industrial maritime heritage with modern naval activity.
The elevated viewing area near the brick walls provides a framed composition of the submarines against the backdrop of the bay.
Bring a pair of binoculars for a closer look at the submarine deck equipment and crew activity.
Visit during low tide or clear weather to ensure the clearest visibility of the submarine hulls.
Check the JMSDF Kure website for public information regarding vessel movements if you are hoping to see specific submarine classes.
Do not attempt to enter the fenced-off military pier area, as it is a strictly controlled security zone.
Refrain from using telephoto lenses to photograph sensitive military equipment details; avoid crossing into restricted naval facility zones.
