The cave formed by the corrosion of the waves after a long time in Enoshima in the deepest part of Enoshima comes from the Iwasaya (depth 152 m), which is said to be the origin of the Esashima Shrine, and the second Iwaoya (depth 56 m), which is said to be the legendary dragon god legend It is made up. Enoshima Iwa-ya which was the object of faith for the time is said that Yoritomo arrived in the victory prayer, and the appearance that people crowded with people visiting Iwateya from the Edo period to the Meiji era is drawn in many Ukiyo-e.
Inside the cave there is also a gallery that introduces the history of Enoshima, trying to feel the exploration feeling while feeling the history and culture Enoshima has walked from various exhibits.
