Offered to the shrine at Genbudo Park in Toyooka of the Hyogo Prefecture, home to five beautiful basalt caves with over 1.6 million years of geological history. The Genbudo Caves are part of the San’in Kaigan UNESCO Global Geopark, this park was designated in 1931 as a National Natural Monument by the Japanese Government due to its significant role in the discovery of reverse magnetization.

Text extracted from https://visitkinosaki.com/things-to-do/genbudo-park/