Dive into the Deepest Postbox

The idyllic seaside town of Susami in Japan's Wakayama Prefecture boasts an unusual world record—the deepest postbox, submerged 10 meters underwater. Established as part of a marine cover activity, this novel postal service captivates divers from around the globe. Installed with the assistance of local maritime authorities and the postal service, the underwater postbox is a fascinating blend of novelty and utility.

Despite its seemingly unconventional location, the postbox is actively used. Divers can send waterproof postcards to their loved ones, combining a thrilling diving experience with a delightful surprise. The postal service collects these submerged missives regularly, ensuring they reach their intended destinations.

This initiative has not only bolstered tourism but also sparked increased interest in Japan's marine conservation efforts. Experts suggest that such creative endeavors can foster a greater appreciation for oceanic environments while providing a unique twist on traditional tourism practices.