★ Cruise the mangrove river of natural monuments! [Photo data free]At the national monument of the natural monument “Hiragi Forest of Miyara River”, a super-standard activity canoe / New activity SUP from Hawaii! The charm of Ishigaki Island is not just the sea!★ Landing & snorkeling on a phantom island! [Photo data free]“Phantom Island” is an island made of sandy beaches floating on the west sea of Ishigaki Island. It is named because it changes its shape depending on the tide. In the surrounding sea you can swim with many fish and corals! It’s like a natural aquarium!