In 1999, the coastal town of Susami, Japan, unveiled an extraordinary underwater mailbox to lure tourists into its depths. This innovative postbox soon gained recognition from Guinness World Records for its remarkable submersion. Adventurous divers flock to the site to send waterproof postcards, contributing to an impressive total of nearly thirty-eight thousand postcards dispatched over the years.
Read more at the source
Disclaimer: The content of this post is sourced from external sites and is for informational purposes only. All rights and credits belong to the original authors and publishers.