This is a sea-eroded cave that stretches 36 meters underground in the scenic Sandanbei Cave in the Kumano Karekinada Coastal Prefectural Natural Park.
Visitors can take an elevator from the ground to the cave to view the cave interior, which stretches 200 meters and includes a replica of a guardhouse based on historical documents, the largest Bensaiten (Sarasvati) in Japan, and the remains of the Seto Lead Mine, where visitors can appreciate the powerful spectacle of the waves coming and going. The San-dan-babe (three-story cliff) and Juzo-iwa (ten image rocks) can be seen from near the surface of the water. However, the museum is closed during typhoons and other stormy seas because of the danger involved.
23 min. by Meiko Bus from JR Shirahama Stn. on the JR Kinokuni-Line bound for Sandanbe Cave, alight at the last stop, and walk 2 min.