The sea at Senbonhama Matsu in Numazu City, where I live, is one of only seven seas in Japan with the highest water quality and is very beautiful. You can also see Mt. Fuji.
Source: https://numazukanko.jp/news/85
I intended to post a video here, but this is a thread for photos, so I will upload photos taken with my action camera.
by akifumi_