Aonomine-san lies between Toba City and Shima City. At 336 meters high, it is the highest mountain in the Shima Peninsula. The sea routes off Daioh-zaki, adjacent to the Shima Penunsula, are tumultuous and many boats have been lost or wrecked. From the sea, Aonomine-san is visible and distinctive, and seafarers navigating this sea route used to pray to lofty Aomine-san for their safe passage. On top of Aonomine-san stands a temple called Shofuku-ji, which enshrines "the goddess having twelve faces." She is a guardian not only for local fishermen and women divers but also for seafarers nationwide.

The top of Aonomine-san is surrounded by thick trees and this prevents a clear view from the peak, but the mountain vista from the parking site is very nice. There are two routes to the top. One is the new road climbing up from Matsuo and down to Isobe, well paved and easily accessible by car. The other route is an old trail climbing from Matsuo and down to Kutsukake.