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Updated: March 22, 2022

Otake Limestone Cave 大岳鍾乳洞

1587 Yozawa, Akiruno City, Tokyo

In order to prevent the spread of coronavirus (COVID-19), various facilities around Tokyo may change their operating days or hours. In addition, some events may be canceled or postponed. Please check official facility or event websites for the latest updates and information.

Explore an underground world at the foot of a sacred mountain

The Otake Limestone Cave is located at the foot of Mt. Mitake, revered as a holy peak since ancient times. Running for 300 meters beneath the mountain, it provides a subterranean adventure on the outskirts of Tokyo. A sacred Shinto rope adorns the entrance, letting you know you're stepping into another world. The cave's well-preserved rock formations include illuminated stretches of stalactites and stalagmites. Borrowing a spelunking helmet from the visitor center is a good idea for the tight crawls along the way. Accessible year-round, it stays cool in summer, making this Tokyo Natural Monument a fun escape from the city heat. Free Wi-Fi is available at the visitor center. Because the schedule is irregular, please contact the facility to confirm availability.

How to Get There

  • Musashi Itsukaichi StationJR Itsukaichi LlineOtake Limestone Cave EntranceApproximately 30 min on foot


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Opening Hours

  • 9:00-16:00

  • Closing days: Thursdays


General admission: 600 yen

Facility Info

  • Restrooms

For updated information on opening hours, closings, prices, and more, please check the official website or ask the facility directly.