Ryusendo Cave

龍泉洞

Ryusendo Cave in Iwaizumi Town is counted as one of the three largest limestone caves in Japan. The cave and the bats living in it are a national natural monument. Inside, clear water from deep underground forms several lakes with a deep blue color. Visitors walk along paths past rock formations and look down into the underground lakes.

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Visitor information

Opening hours

Open 8:30–17:00. From December to February, the cave closes at 16:00.

Admission

Adults 1,100 yen, students 550 yen.

Elementary and junior high students pay 550 yen, and preschool children are free. Group discounts apply for 15 or more.

Hours and fees can change. Please check the official website before you go.

Good to know

The third underground lake is 98 meters deep.
The cave is a national natural monument together with the bats that live in it.

Tips for Muslim visitors

Seeing both caves usually takes about an hour.
The cave temperature stays about the same all year, so it is comfortable even in winter.
Natural sites may have few facilities. Bring water, a travel prayer mat and a qibla app, and check the weather; mountains and lakes can be much colder than the city.
Restrooms for wudu can be far apart on trails. Many Muslim travellers carry a small water bottle for wudu.
Plan your visit around prayer times. Below are today's prayer times for Iwate and the verified places to pray nearby.
Food stalls and shops near popular sights usually do not have halal certification. Check the ingredients, or choose from the verified places on this site.