Kawachi no Kaza-ana
河内風穴
Explore Japan's fourth-longest limestone cave, a natural wonder formed 600,000 years ago.
What it is
- A limestone cave in Shiga Prefecture, Japan.
- Formed approximately 600,000 years ago.
- Japan's fourth-longest cave, over 10,020 meters long.
- Longest and largest limestone cave in the Kansai region.
What to see
- Underground passages beneath Mt. Nabeshiri's northeast ridge.
- Designated a Shiga Prefecture Natural Monument.
- Part of the Biwako Quasi-National Park.
- Interior maintains 93%-95% humidity year-round.
Notes written by Japan Gems from facts in Japanese Wikipedia.
Where it is
Kawachi no Kaza-ana Open in Google Maps
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