沖縄諸島
The Ryukyuan languages are spoken on the Ryukyu Islands, which comprise the southernmost part of the Japanese archipelago There are four major island groups which make up the Ryukyu Islands: the Amami Islands, the Okinawa Islands, the Miyako Islands, and the Yaeyama Islands. The former is in the Kagoshima Prefecture, while the latter three are in the Okinawa Prefecture.