Nyonindo is located at the Fudo Slope Entrance of the Koyasan in Wakayama
Koyasan has been the strict buddhist training ground.
Therefore women were not allowed to enter Koyasan before 1872.
Originally there were seven different mountain trails leading to Koyasan from below.
There were seven residences for women pilgims at each of seven entrances.
Those seven women residences were called Nyonindo.
Now there is only one remaining at the Fudo Slope Entrance.