Ryūsendō Cave (龍泉洞) 龍泉洞
One of Japan's three great limestone caves: 700 of its 4,088 m are open, always at 10°C.
Limestone cave in the Shimohei district, in Iwaizumi, one of Japan's three great caves together with Akiyoshidō (Yamaguchi) and Ryūga-dō (Kōchi).
Iwate
龍泉洞前