The Ramsar Convention on wetland resources lists the limestone plateau of Akiyoshi, with its underground water system that has eroded a 10Km complex of magnificent caverns. The plateau was formed by the remains of a 350 million years old coral reef, pushed ashore by the movement of the ocean plates. Rainwater percolating through the rock cut the caverns, and the lime in the water created the spectacular stalactites and stalagmites that make this one of the nature sights of Japan.

Japan Video Topics
© http://Web-Japan.org
The Ministry of Foreign Affairs of Japan
Produced by NHK International