Ari-kun Crater & Walking Trails

有くん火口
AdmissionFree
Opening HoursAll day
Closed-
Contact-
NotesLight walking trails, photography spot, parking available
Location /
Getting There
On the southern side of Lake Toya. The crater itself is a 15 minute walk from the entrance.
Toyakoonsen, Toyako, Abuta District, Hokkaido 049-5721

Lake Toya, being a caldera volcanic lake, is surrounded by land that has seen its fair share of volcanic activity. The area is home to a few craters, half a dozen monuments related to the ever shifting geography, and the active volcano Mt. Usu! Among the craters formed over the the southern area of Lake Toya there are some walking trails that make for a nice hike taking in the surrounding landscape. The entrance to the path, called the ‘Kompirayama Walking Trail’ can be found behind the Toyako Visitor Centre. It is also here you can find the parking lot.  

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The walking trails are numbered from one to seven. You can find a map of these trails at the small hut at the base of the stairs that lead to start of the hike. The walk leads up into the hills where you can view the Ari-kun crater. Simply follow the sign mark T-7 and this will lead you to the crater. Along the way, you can see the steel barriers that were erected to protect the town from the hot mudflow after the 1977 eruptions. The trail is a circuit that also leads past the Sakuragaoka Housing Complex Ruins. Not only can you enjoy the views, but you also learn about the interesting history of the impact of the volcanoes in the area!