Ryusendo Limestone Cave, Iwaizumi-cho, Japan
Ryusendo Cave is an extensive limestone cave in the mountains of Iwaizumi Town in Iwate Prefecture and regarded as one of Japan’s three great limestone caves. It is estimated that the caverns extend nearly 5000 meters into the mountainside, about 3500 meters of which have been explored to date since surveys began in the 1920s. Large volumes of clear, blue water gush forth from the cave’s depths, forming an underground river and four underground lakes in the caverns.
Nearly 700 meters of Ryusendo Cave are open to the public and made accessible via elevated walkways, bridges and stairs. Though adventurous, the path through Ryusendo is well developed and easy to navigate. The caverns are relatively spacious and only moderately constricting at times. Visitors can walk along the underground river that flows through the cave entrance, and explore several open caverns and high vaulted galleries on their way to the underground lakes further back.
Epic Japan Culture & Adventure Route © Monika Newbound
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