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Ryugashido Cavern
A must-see natural wonder created in 250-million-year-old rock layers, Ryugashido Cavern is one of the largest limestone caves in the Tokai region.
Located in the Okuhamanako region, Ryugashido Cavern was formed in rock layers approximately 250 million years old. It is one of the largest limestone caves in the Tokai region, with a total length of about 1,000 meters, 400 meters of which are open to the public.
The Cavern is a mysterious space filled with stalactites, formed over many years, and can be described as natural art. Highlights include the "Golden Great Waterfall" with a 30-meter drop and the "Phoenix Hall," where chandelier-like stalactites spread across the ceiling. The Cavern’s internal temperature remains at an average of 18°C throughout the year, providing a cool escape in summer and warmth in winter, making it a comfortable exploration experience in any season.
The Cavern complex includes a museum that offers detailed dioramas and information about the Cavern, and a gelato shop that has been chosen as the best by bus guides in Shizuoka Prefecture.
Highlights
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Located in the Okuhamanako region, it is the largest limestone Cavern in the Tokai area.
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Of the total 1,000 meters, 400 meters are open to the public.
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The cavern features various forms of stalactites and a 30-meter waterfall.
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The temperature inside remains nearly constant year-round, providing coolness in summer and warmth in winter.
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Additional facilities include a museum and shops.
Photos
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![Experience the feeling of being squeezed between rocks at "Byobu Rock."]()
Experience the feeling of being squeezed between rocks at "Byobu Rock."
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![The majestic "Water God" looks like an actual statue of a deity.]()
The majestic "Water God" looks like an actual statue of a deity.
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![The "Fountain of Longevity" with its clear water.]()
The "Fountain of Longevity" with its clear water.
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![The "Cavern Museum" with detailed dioramas about the cavern.]()
The "Cavern Museum" with detailed dioramas about the cavern.
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!["Yokita Cave" for a cool down with the cold cave air.]()
"Yokita Cave" for a cool down with the cold cave air.
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![The popular gelato shop inside the store.]()
The popular gelato shop inside the store.
Official FAQs
Frequently Asked Questions have been vetted and answered directly by each listing.
Q
Do you have signs or pamphlets in foreign languages? (If you do, which languages are available?)
English, Chinese and Korean are available.
Q
Is free Wi-Fi available in the area?
Yes, free Wi-Fi is available at the Hakkakudo store.
Q
Are coin lockers available?
Yes (fee is 200 yen)
Q
Are there restrooms?
Yes, restrooms are available at the store and the parking lot.
Q
Is it possible to re-enter the premises?
Re-entry is not allowed.
Q
What should I wear?
Please wear comfortable walking shoes.
Q
Can I bring my pet?
Pets are not allowed inside the cavern or the store.
Reviews
Details
- Name in Japanese
- 竜ヶ岩洞
- Postal Code
- 431-2221
- Address
- 193 Inasachotazawa, Hamana-ku, Hamamatsu City, Shizuoka
- Telephone
- 053-543-0108
- Closed
- Free to walk
- Business Hours
- 9:00am - 5:00pm （Admission allowed until 4:30pm）
- Admission
- High school students and older 1,000yen, Elementary and junior high school students 600yen
- Access
- From Kanasashi Station on the Tenryu Hamanako Railway, take a bus for 15 minutes to "Ryugashido Entrance" stop, then walk 7 minutes.
- Credit Cards
- Accepted
- Official Website
- Official Website (Japanese)