![How the World's Deepest Underwater Mailbox Off Green Island Generates Business Worth NT$ 60 Million|Politics & Society|2019-10-11|web only How the World's Deepest Underwater Mailbox Off Green Island Generates Business Worth NT$ 60 Million|Politics & Society|2019-10-11|web only](https://storage.googleapis.com/www-cw-com-tw/ckeditor/201907/ckeditor-5d1f1dd72be3d.jpg)
How the World's Deepest Underwater Mailbox Off Green Island Generates Business Worth NT$ 60 Million|Politics & Society|2019-10-11|web only
![IT'S FACTASTIC on Twitter: "Susami Bay, Japan🇯🇵 . - FOLLOW @itsfactastic For More! @WakayamaPref #japan #susami #wakayama #underwater #postoffice # postbox #guinessworldrecord #itsfactastic https://t.co/mDI45LEBnn" / Twitter IT'S FACTASTIC on Twitter: "Susami Bay, Japan🇯🇵 . - FOLLOW @itsfactastic For More! @WakayamaPref #japan #susami #wakayama #underwater #postoffice # postbox #guinessworldrecord #itsfactastic https://t.co/mDI45LEBnn" / Twitter](https://pbs.twimg.com/media/D0qdkQ7XQAE9nIC.jpg)
IT'S FACTASTIC on Twitter: "Susami Bay, Japan🇯🇵 . - FOLLOW @itsfactastic For More! @WakayamaPref #japan #susami #wakayama #underwater #postoffice # postbox #guinessworldrecord #itsfactastic https://t.co/mDI45LEBnn" / Twitter
![Photo: Post Box at World's First Underwater Post Office | Vanuatu album | TSPAdventures | Fotki.com, photo and video sharing made easy. Photo: Post Box at World's First Underwater Post Office | Vanuatu album | TSPAdventures | Fotki.com, photo and video sharing made easy.](https://images20.fotki.com/v1632/photos/1/1028651/6003302/M1073029-vi.jpg)
Photo: Post Box at World's First Underwater Post Office | Vanuatu album | TSPAdventures | Fotki.com, photo and video sharing made easy.
![How the World's Deepest Underwater Mailbox Off Green Island Generates Business Worth NT$ 60 Million|Politics & Society|2019-10-11|web only How the World's Deepest Underwater Mailbox Off Green Island Generates Business Worth NT$ 60 Million|Politics & Society|2019-10-11|web only](https://cdn-cw-english.cwg.tw/article/201910/article-5da5867200545.jpg)
How the World's Deepest Underwater Mailbox Off Green Island Generates Business Worth NT$ 60 Million|Politics & Society|2019-10-11|web only
![Universal Postal Union on Twitter: "#DoYouKnow that almost 38,000 #letters have been sent from under the #sea? The World's Deepest Underwater Post Office Box 📮is located in #Susami, the small Japanese seaside Universal Postal Union on Twitter: "#DoYouKnow that almost 38,000 #letters have been sent from under the #sea? The World's Deepest Underwater Post Office Box 📮is located in #Susami, the small Japanese seaside](https://pbs.twimg.com/media/DfLS6LFWkAAoB-O.jpg)
Universal Postal Union on Twitter: "#DoYouKnow that almost 38,000 #letters have been sent from under the #sea? The World's Deepest Underwater Post Office Box 📮is located in #Susami, the small Japanese seaside
![A diver drops a postcard into an undersea mailbox off the coast of Susami, in the western Japanese prefecture of Wakayama April 28. The mailbox was installed at a depth of 10 A diver drops a postcard into an undersea mailbox off the coast of Susami, in the western Japanese prefecture of Wakayama April 28. The mailbox was installed at a depth of 10](https://c8.alamy.com/comp/2D56749/a-diver-drops-a-postcard-into-an-undersea-mailbox-off-the-coast-of-susami-in-the-western-japanese-prefecture-of-wakayama-april-28-the-mailbox-was-installed-at-a-depth-of-10-metres-april-23-as-a-part-of-a-marine-sports-festival-event-and-can-be-used-to-send-mail-divers-can-post-a-150-yen-us12-waterproof-plastic-postcard-into-the-box-and-a-local-diving-shop-staff-member-picks-up-cards-once-a-day-as-part-of-regular-mail-service-kmjir-2D56749.jpg)
A diver drops a postcard into an undersea mailbox off the coast of Susami, in the western Japanese prefecture of Wakayama April 28. The mailbox was installed at a depth of 10
![Underwater Post Box Details / Explore| Japan Travel by NAVITIME - Japan Travel Guides, Maps, Transit Search and Route Planner Underwater Post Box Details / Explore| Japan Travel by NAVITIME - Japan Travel Guides, Maps, Transit Search and Route Planner](https://svcstrg2.navitime.jp/imgfile/02301_t1584_03.jpg)