The Rock of Koza river (古座川の一枚岩) is one of best tourist spot in Kozagawa. It is a single rock about 800m wide and 150m tall. It is registered as the national monument of nature.

Tourist Info.
There is parking and restroom.
Thre is a gift shop and restaurant in front of the rock.

Access
0. at Shingu Station.
1. use JR Kise Line to Koza
2. use bus to Ichimai Iwa.