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World’s deepest underwater post office
  • Story Crux Team
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Under Water Post Office

Want to receive a letter from underwater post? It can happen in Japan.

Susami is a popular fishing town of Wakayama in Japan that holds the Guinness World Records for having the deepest underwater postbox, at a depth of 10 meters from its coast.

The post office is mostly used by divers to deliver a post. They have to buy a water resisting postcard at Yamatani’s store and write with an oil-based paint marker. The posts are collected every few days and taken to the office to be delivered within a week of being posted.

underwater post office

Credit: Japan Times

This unique post office was started in 1999 to promote the Koda pilgrimage trail and surrounding areas in the southern part of Wakayama’s Kii Peninsula. Since its inception, over thirty-two thousand items of mail have been posted in the box. It was recognized by Guinness World Records as the “Deepest Underwater Postbox” in 2002.

World’s deepest underwater post office

Credit: Awesome Ocean

Susami is a two hour express journey from the city of Wakayama and beside the post office, the town has beautiful sea and rich underwater life that gives its visitor much to see and gaze in wonder.

Travel underwater post office