![underwater post box in japan Archives - TheSmartLocal Japan - Travel, Lifestyle, Culture & Language Guide underwater post box in japan Archives - TheSmartLocal Japan - Travel, Lifestyle, Culture & Language Guide](https://thesmartlocal.jp/wp-content/uploads/2022/10/Susami-Bay-2-400x209.jpg)
underwater post box in japan Archives - TheSmartLocal Japan - Travel, Lifestyle, Culture & Language Guide
![Whitaker's Almanack on Twitter: "#DidYouKnow The world's deepest postbox is in Susami Bay, Japan which is 10 metres below sea level #FACT https://t.co/Pq7BdInOyk" / Twitter Whitaker's Almanack on Twitter: "#DidYouKnow The world's deepest postbox is in Susami Bay, Japan which is 10 metres below sea level #FACT https://t.co/Pq7BdInOyk" / Twitter](https://pbs.twimg.com/media/CT2FEcNUcAArSlB.jpg)
Whitaker's Almanack on Twitter: "#DidYouKnow The world's deepest postbox is in Susami Bay, Japan which is 10 metres below sea level #FACT https://t.co/Pq7BdInOyk" / Twitter
![World's deepest underwater mailbox opens near Taiwan's Green Island | Taiwan News | 2018-05-04 19:39:26 World's deepest underwater mailbox opens near Taiwan's Green Island | Taiwan News | 2018-05-04 19:39:26](https://tnimage.s3.hicloud.net.tw/photos/shares/5aec0c22a7a0b.jpg)
World's deepest underwater mailbox opens near Taiwan's Green Island | Taiwan News | 2018-05-04 19:39:26
![UTMIndia on Twitter: "#TravelTuesday An underwater mailbox in Susami Bay, #Japan that's officially the deepest mailbox! #Crazy #Facts https://t.co/Wk6ZRlg1OM" / Twitter UTMIndia on Twitter: "#TravelTuesday An underwater mailbox in Susami Bay, #Japan that's officially the deepest mailbox! #Crazy #Facts https://t.co/Wk6ZRlg1OM" / Twitter](https://pbs.twimg.com/media/CnJ9V0AWcAAkj69.jpg)