Personally, I think it's the best place to visit Nagasaki this time. It's a 19 minute boat ride from Nagasaki Harbor. First, we went to the beach bathing ground on the beach of Iwangdao Island. Without renting a bicycle, we walked about 1.5 kilometers and had to wait a long time by bus. September can also go to sea, preferably at 10 noon, the sun is not too sunny. There is a warm shower near the beach. The water is still blue for 3 minutes and 100 yen. The seaside hot springs are very good. They are sea water hot springs.