Nippara Cave

The cave system extends 800 meters underground through limestone formations, featuring numerous stalactites, stalagmites, and stone pillars throughout multiple chambers and passages.

During the Edo period, the cave served as a mountain worship site, with archaeological findings including ancient bronze mirrors and monetary offerings within its depths.

The cave maintains special protection status as a Natural Monument of Tokyo Prefecture, representing geological formations that developed over millions of years.

The cave maintains a constant temperature of 11 degrees Celsius throughout the year, with guided tours lasting approximately 40 minutes through illuminated pathways.

The Suikinkutsu chamber contains underground water that creates natural musical sounds when drops fall into hidden cavities beneath the surface.

Location: Okutama

Address: 東京都西多摩郡奥多摩町日原１０５２ 198-0211

Website: http://nippara.com/nippara/syounyuudou/syounyuudou.html

GPS coordinates: 35.85258,139.04086

Latest update: May 27, 2025 13:18