Hakusan Domon Rock Cave located in a little westward from the tip of Ashizuri Cape is a typical rock cave created by sea water erosion. This 16-meter high and 17-meter wide rock cave is one of the largest granite stone caves in Japan. The base of the rock is being eroded by the raging waves of the Pacific Ocean.

As the promenade leads you very close to the cave, it is suitable for geological study as well as sightseeing. On top of the Rock cave is a tiny shrine, where the deity of Hakusan Shrine is enshrined as the guardian god. Listening to the sound of the waves washing the shore of the Pacific Ocean, you will experience the crossing moment when the time flowing over the mother earth and the time spent by us, human beings cross each other.