大増鍾乳洞

Daimasushōnyūdō - Daimasu Shonyudo - Daimasu Limestone Cave - Omasu Limestone Cave

Useful Information

Location:	Okutama Town (35.824397, 139.077240)
Open:	closed. [2021]
Fee:	closed. [2021]
Classification:	Karst Cave
Light:	Incandescent
Dimension:	L=45 m.
Guided tours:	D=20 min.
Photography:	not allowed
Accessibility:
Bibliography:
Address:	Omasu Limestone Cave, 2226 Hikawa, Okutama-cho, Nishitama-gun, Tokyo, Tel: +81-428-83-2922.
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.

History

1982	discovered by accident and opened to the public.
SEP-2011	closed after damages by a typhoon.

Description

大増鍾乳洞 (Daimasu Limestone Cave or Omasu Cave) was discovered by the owner in his backyard during some excavation work. It is quite small but conveniently located at the road and has some nice speleothems, so the owner decided to open it to the public. Unfortunately the cave was damaged by a typhoon in September 2011, closed and never reopened.