Okinawa (沖縄県) Prefecture is tropical islands located far south-west of Japan. Unlike other place of Japan, Okinawa has a great warm weather expept typhoons. As a tropical resort land, there are many beautiful white beaches, blue ocean and coral sea that provide the tourist great marine sports such as squba diving, snorkeling, swiming and surfing. Especially, Iriomote Island has one of the best nature spot in Japan. Food cultures are very different from the main island of Japan. It has also many historic site such as Shuri Castle.