Yagoshi Cape, located at the southern tip of Shiriuchi Town, is designated as "Matsumae Yagoshi Prefectural Natural Park," and between Wakimoto and Yagoshi, the coastline where strange and bizarre rocks with strange shapes and names, such as Hebinohana Rock, Kitsunekoshi Cape, Namako Cape, and Enjin Rock, starting with Ikarikai Island, are lined up, is magnificent.

The wild coast of great nature, to the extent that it does not allow people to approach, is called a hidden region of Donan, and especially a sightseeing cruise by boat allows one to enjoy a magnificent panorama.

Beyond Yagoshi Cape, at Iwabe Coast in Fukushima Town, there is the "Blue Grotto."
With the summer period limited cruise ship, one can enter the "Blue Grotto," and can experience the mysterious blue world.