Situated within a marine sanctuary off Hideaway Island, this underwater post office even has its own Tripadvisor entry (it's got a 4 star average, in case you're wondering). The post office is ...

Vanuatu Post is the world's first and only underwater post office. Those who wish to send a postcard from under the sea, in the company of corals and multicolored fishes, need only scuba-dive ...

You have to be over the age of eight to enter, and tickets cost $38 per person. Vanuatu's Underwater Post Office, situated within the Hideaway Island marine sanctuary near Port Vila, has a Post ...