Japan's Ryusendo Cave

Japan's Ryusendo Cave

Ryusendo Cave is located at the foot of Mt. Ureira in Iwaizumi Town, Iwate Prefecture, in Japan's northeastern region. It is one of Japan's largest and most spectacular limestone caves and has been designated as a Natural Monument of Japan. The cave is filled with various naturally formed stalactites, stalagmites, and other formations in diverse shapes. There are also four underground lakes formed by spring water emerging from deep within the cave, giving the entire cavern a mysterious allure and making it one of the most notable tourist attractions in the Tohoku region.

It is estimated that the full depth of Ryusendo Cave may exceed 5,000 meters, but only about 2,500 meters have been explored so far. In addition to its unique stalactite and stalagmite formations, the cave also contains the world’s deepest underground lake. Currently, four underground lakes have been discovered in Ryusendo Cave, but for visitor safety, only the first, second, and third lakes are open to the public. The fourth lake is 120 meters deep and is said to be the deepest underground lake in the world. The lake water is exceptionally clear, and when illuminated with blue-toned lighting, the cave takes on a mystical and romantic atmosphere, making it very popular with tourists. Nowadays, the spring water from Ryusendo Cave is carefully filtered and has become a renowned natural mineral water rich in calcium and other minerals. Many visitors purchase this mineral water as a local souvenir to take home.

Ryusendo

Must-visit reason: One of Japan's largest and most spectacular limestone caves

Continent where the attraction is located: Asia【Asia】

Country/Region where the attraction is located: Japan[Japan]

Province/State where the attraction is located: Iwate Prefecture [Iwate Prefecture]