Senga fall is very quiet and cool waterfall. You can go behind the fall. Be careful, it is very slippy. It is very close from the parking, just about 3 min by walking. There are many benches where you sit and relax.
Senga fall (仙ヶ滝, sengadaki) is the waterfall located in upper part of Tsukumo river, Gunma. It has 15m high. You can also enjoy great autumn color or deep green in summer. It named for the princess Osen who jumped in this fall when her Matsuida Castle was fallen.
Tourist Info.
There is parkings, but no restroom.
Access
15 min
New Wave Samurai Movie. 
映画好き集まれ！ 
Senga fall is very quiet and cool waterfall. You can go behind the fall. Be careful, it is very slippy. It is very close from the parking, just about 3 min by walking. There are many benches where you sit and relax.