Rasen Falls (螺旋滝) is one of Tadachi Waterfalls located in Nagiso, Nagano.
Tadachi Falls is one of the 100 best Japanese waterfalls. Rasen literary means spiral. So, it has a spiral shape.

Tourist Info.
There is parking and restroom at parking.
Admission: 200 yen.
Hiking takes 3 hours. Requires nice shoes for hiking.

Access
0. at Nagiso Station.
1. use JR Chuo Line to Tadachi (10 min.)
2. take a taxi to its parking (20 min.)