I started my walk along the Saigoku Kannon Pilgrimage in Nachi on the south coast of Wakayama. The first temple is Seigantoji at the famous Nachi Falls, and for the first 8 days the Saigoku Pilgrimage follows the Kumano Kodo.
Just across from the station in Nachi is Kumano Sansho Omiwasha, a subsidiary shrine of Nachi Taisha, and right next door to Fudurakusanji, the temple it was a part of until the separation of shrines and temples in early Meiji.
People would stop at the shrine to purify before heading next door to the temple and then on up the valley to the falls.
The three kami enshrined here are the three Kumano kami enshrined at Nachi, Shingu, and Hongu, Fusumi no okami, Hayatamano, and Ketsumiko no mikoto.