Genbudo, the largest of the five basalt caves at Genbudo Park, with a new lookout and performance stage
Toyooka City is pleased to announce the awaited re-opening of Genbudo Park! Home to the five beautiful basalt Genbudo Caves with over 1.6 million years of geological history, Genbudo Park was designated in 1931 as a National Natural Monument by the Japanese Government, and the impressive caves are also part of the San’in Kaigan UNESCO Global Geopark, making it a perfect educational outdoor trip for visitors to the area. The newly renovated park grounds welcome back visitors with improved walking paths, lookout points, and explanations and exhibition signs completely translated into English. Entry fees range from 500 JPY for adults and 300 JPY for students (400 JPY for adults and 240 JPY for students with groups of 20 people or more), with viewing hours from 9:00 to 17:00 (last entry at 16:30).
Harmony Between Nature and Industry
After a volcanic eruption over 1.6 million years ago, the basalt rocks of the caves formed columnar joints due to magma cooling, contracting, and eventually forming vertical hexagonal cracks. Before becoming a park and museum for the public to enjoy, the Genbudo Caves were utilized as a quarry during the Edo Period (1603~1867), resulting in the recessed areas of the cave that are still viewable to this day. Locals discovered that the rocks could easily be used for building materials, and visitors can still see these basalt rocks just about everywhere during one's visit to the area, including in the park’s walkways.
Seiryudo, one cave with visible mining traces.
Getting to the Caves
An Illumination Celebration
In honor of Genbudo Park's re-opening, nightly light up events are held every day throughout the month of September, painting the caves in a rainbow of glowing illuminations. Stage shows are also to be held on specified evenings in conjunction with the light up displays, including tap dancing and also a performance from the Toyooka Theater Festival.