Okinawa (Okinawa-ken) is Japan's southernmost prefecture, consisting of a few dozen, small islands in the southern half of the Nansei Shoto, the island chain which stretches over about one thousand kilometers from Kyushu to Taiwan.
Okinawa Prefecture can be divided into three major island groups, the Okinawa Islands (Okinawa Shoto) around Okinawa Island (Okinawa Honto), the Miyako Islands (Miyako Retto) around Miyako Island and the Yaeyama Islands (Yaeyama Retto) around Ishigaki Island.
Okinawa's climate is subtropical, with temperatures barely falling below 15 degrees in winter. The seas surrounding Okinawa's islands are considered among the world's most beautiful with coral reefs and abundant marine wildlife. Consequently, snorkeling and scuba diving are among Okinawa's top attractions.