Shiriyaki Onsen (尻焼温泉) is one of Onsen located in Kuni Village, Gunma. It is also known as Onsen of RIver because entire river, in the spot, is Onsen. There are three motels located right next to Onsen. It is free, and you can enjoy real wild Onsen.

Tourist Info.
It is wild. No changing room. Free. If there is too much rain, you can't take. 24 hours open, but no light.

Access
0. at Maebashi Station.
1. use Agatsuma Line to Naganoharakusatsuguchi
2. use bus to Hanashiki Onsen (45 min.)
3. walk west (10 min.)