UNDERWATER POST OFFICE Vanuatu has unveiled what it claims to be the world's first underwater post office. But it isn't as silly as you might think you buy special postcards available from shops on the island. You then scuba dive three metres down to have your postcards embossed with a waterproof stamp, specially created by Vanuatu Post to celebrate the 83-island country's status as a marine paradise. Vanuatu Tourism described the fiberglass post office as being surrounded by beds of coral and multicoloured fish in a marine sanctuary. It is all aimed at drawing attention to the diversity of Vanuatu's underwater world. "The landscape beneath the waters contains mountainous terrain with plunging cliffs, huge caves and intricate interconnecting underwater tunnels formed by frozen lava and abundant marine life," Vanuatu Tourism says. "Sea fans, soft corals and acropora gardens, plate corals and sponges and thousands of curious fish are there for all to see There are also wrecks of planes, an old sailing ship and a destroyer, the tourism board added