Only last month, the Ogasawara Islands became the fourth place in Japan to be designated as a World Heritage site. The remote islands float in the middle of the Pacific Ocean, about 1000 kilometers south of Tokyo, and can only be reached by taking a 25.5-hour journey by boat from the mainland. Among the 30 subtropical islands, large and small, only two are inhabited. In this program, JJ heads for one of the two, called Chichijima. The isolated islands are still rich in nature, both land and sea, and migrating dolphins can be seen in the beautiful waters around the islands all year.