Sand and soil conveyed by the Satsu River were accumulated in a cove formed in a sunken valley caused by an increase of the sea level. A town was built on the sand bar along the seashore, and rice fields were built in the backswamp and along the valley in the upstream.
（1）Satsu Kaigan Coast (Kundani Beach)
A village developed on the sand bar in the heart of the ria coast cove. The seashore has popular bathing beaches.
（2）Shibayama Sekiheki (Shibayama Red Cliff)
A cliff some 200m in length and 49m in height formed of rhyolite. It seems reddish because metallic minerals get rusty. There are mine sites near the site.
（3）Mikawa Gongen
Mikawa Gongen, located at the foot of Mikawa Mountain, is said to have been established by Ennogyoja, the founder of Shugendo (a kind of mountain asceticism) in 674 by transferring Zao-Gongen. Naturally grown rhododendron are also beautiful.
（4）Mikawa Gongen Festival (May 3)
Mountain ascetics gather from all over Japan to the great spring-calling festival, Mikawa Gongen Festival. The ritual of Saitou Ogoma Houyou which is said to destroy sins with the fire of wisdom is one of the attractions of this festival.
