Nippara Limestone Cave
This limestone cave is located in Okutama-cho in western Tokyo. The cave has a total length of 1270 meters, with a height variance of 134 meters. It is One of the largest limestone cave in the Kanto region, and it has been designated as a natural monument by the Tokyo Metropolitan Government. Once flourishing as a spot for mountain worship, Nippara Limestone Cave is now a popular tourist spot.
You can get here directly by bus from JR Okutama Station. The cave is cool inside, making it a perfect spot during the hot summer. The formations, shaped over tens of thousands of years, are definitely worth seeing! I also recommend enjoying some trekking or hot springs in the area.