Inazumi Underwater Limestone Cave

Inazumi Underwater Limestone Cave was formed 300 million years ago, and it went under water by a large volcanic eruption 300,000 years ago. Inside the limestone cave appears the mystical world with myriads of stalactites and coral stones as well as a beautiful spring in emerald green. You can walk around inside this beautiful cave. Although it is still under survey, it is at least 1 km long judging from what we know so far. It is the longest underwater limestone cave in Japan.

Address
300 Miemachi, Oaza Nakazuru, Bungoono-shi, Oita
Access
From Miemachi station on JR Hohi main line, take a taxi for about 20 minutes.
Opening Hours / Holidays
9:00-17:00 (possible to be extended during summer)
Open all year round
Official Website
http://www.inazumi.com/
Admission fee
Adults 1300 yen, college students - junior high & high school students 1000 yen, 4 years old to elementary school student 700 yen

※ Some information is displayed in Japanese and machine-translated English, which may not be accurate.
For the latest information, please check the official website for each spot.

Hakusan River: One of the 100 Exquisite and Well-Conserved Waters

The spring water in limestone cave is the penetrated water of Hakusan River. Hakusan River is well known as a clear stream and also listed as one of the 100 Exquisite and Well-Conserved Waters. People enjoy the view of fireflies flying around in early summer as well as the view of bright red and yellow leaves in autumn.

Inazumi Underwater Limestone Cave

Inazumi Underwater Limestone Cave was formed 300 million years ago, and it went under water by a large volcanic eruption 300,000 years ago. Inside the limestone cave appears the mystical world with myriads of stalactites and coral stones as well as a beautiful spring in emerald green. You can walk around inside this beautiful cave. Although it is still under survey, it is at least 1 km long judging from what we know so far. It is the longest underwater limestone cave in Japan.

※ Some information is displayed in Japanese and machine-translated English, which may not be accurate.
For the latest information, please check the official website for each spot.

Hakusan River: One of the 100 Exquisite and Well-Conserved Waters

The spring water in limestone cave is the penetrated water of Hakusan River. Hakusan River is well known as a clear stream and also listed as one of the 100 Exquisite and Well-Conserved Waters. People enjoy the view of fireflies flying around in early summer as well as the view of bright red and yellow leaves in autumn.

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