Shukuba no Yu is a publicly-run hot spring located on Highway 17 at the Mikuni Kaido Futaijuku.
The hot spring is a low mineral content spring. In addition to a large indoor bath, there are other features such as a Jacuzzi and a sauna.
The building also houses a cafeteria, a kiosk, a display space called Warabe no Uta, and more. It's located near the Tashiro Ski Hill, so it's a convenient place to rest after a day at the slopes.