Saiko Komori-ana

Saiko Komori Grotto - Lake Sai Bat Cave

Useful Information

Location: Near lake Saiko, north of Mt. Fuji. At yellow Retro Bus stop Saiko Bat-Cave.
Open: 20-MAR to NOV Tue-Sun 9-17.
Fee: Adults JPY 300, Children JPY 150.
Groups (20+) Adults JPY 250.
Classification: Speleologylava tube
Light: electric.
Dimension: L=350m.
Guided tours: D=30min.
Address: Saiko Bat-Cave Information Center, 2068 Saiko, Fujikawaguchiko-machi, Minamitsuru-gun, Yamanashi, 401-0332, Tel: +81-555-82-3111, Fax: +81-555-82-3112.
Aokigahara tree sea and tour around a lava cave, Fuji Kawaguchiko-cho, Tel: +81-555-72-3168.
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.



The Saiko Komori-ana (西湖コウモリ穴) is named after Saiko (Lake Sai) nearby. Together with ShowcaveRyugu Doketsu Iriguchi and ShowcaveNarusawa Fuketsu it is located in the in the Aokigahara lava flow of the Fuji volcano. The Saiko Bat-Cave Information Center organizes guided walks through the nearby suicide forest and the cave. Unlike the other caves in the area it is not a cold trap, contains no ice and is populated by bats.