SPOT
Discovered in 1957, the Toma Limestone Cave boasts a total length of 135 meters. It is a limestone cave formed over an unimaginably long period since the Jurassic period, 150 million years ago, by the corrosive action of groundwater, and is known as an important limestone cave where you can see the academically extremely rare 'macaroni stalactites'.
Because the inside of the cave looks like two dragons lying down, it is also known by the alias 'Ezo Banryudo'.
It was designated as a Natural Monument of Hokkaido in 1961.
Business Hours
Typically late April to late October, 9:00 AM - 5:00 PM (last admission at 4:30 PM)
regular closing day
Late October to late April
Fee
High school students and older: 600 JPY / Elementary and junior high school students: 400 JPY
*Free for preschool children.
Location
Kaimei 4-ku, Toma-cho, Kamikawa-gun (上川郡当麻町開明4区)
Access
15 minutes by car from JR Toma Station
*The information provided is current as of May 2026.
*The information is subject to change. Please check the official website for details.
