★★★Target predatory manta rays★★★ Course available only from December to March

A winter feature of Ishigaki Island, manta rays can be seen feeding on the surface of the water on the remote islands of the Yaeyama Islands, such as Ishigaki Island, Kuroshima Island, Taketomi Island, and Kohama Island. They can be seen with a high probability from December to March in areas with strong northerly winds, such as the west side of Kuroshima Island and Osaki on Ishigaki Island. Unlike the manta rays that gather at the cleaning station, these manta rays feed on plankton on the surface of the water, so it is very impressive to see them coming up close with their mouths wide open. They are so absorbed in feeding that they skillfully avoid us while catching plankton. It is easier to see them snorkeling than diving. They can sometimes approach the boat suddenly, so you need to be on your guard even during your lunch break.