We dropped by the lookout of Shakotan Misaki which means "cape" .
As it is in Shimamui Area, the coast is called Shimamui but I don't know what the word means in the language of indigenous people of Hokkaido Ainu.
We had to go through the small tunnel in the dark to see the beautiful bright blue of the ocean like that of coral islands.
The horn of the cape is not so sharp as that of Cape Kamui.
I did not bring the gear for snorkeling this time but I enjoyed the excursion in the sea several times in this ocean.
This coast was selected as one of the best one hundred beaches in Japan. Most of the visitors do not enjoy snorkeling around this area but I strongly recommend to try that !