Genbudo Park is designated as a Natural Monument of Japan. It is the site of a lava flow from a volcanic eruption that happened 1.6 million years ago. When the lava cooled it formed hexagonal rock columns. There is a guide on site (Reservations may be at Toyooka Kanko Kyokai).

Address	1362 Akaishi Toyooka-city, Hyogo 〒668-0801 兵庫県豊岡市赤石1362
Nearest station	JR：Toyooka station (豊岡駅)　Kinosakionsen station （城崎温泉駅） Zentan Bus(Tajimawaru)： Genbudo Park (玄武洞公園)
Admission	Free Genbudo Tour guide 300yen: 30min/pp 500yen: 60min/pp
TEL	0796-22-8111
HP	http://www.kinosaki-spa.gr.jp/information/info/genbudou.html