The Okinawa Monorail is opened in Naha, Okinawa.
The Okinawa Urban Monorail (沖縄都市モノレール, Okinawa Toshi Monorēru), also known as Yui Rail (ゆいレール, Yui Rēru), is a monorail line serving the cities of Naha and Urasoe, Okinawa, Japan. Operated by Okinawa Urban Monorail, Inc. (沖縄都市モノレール株式会社, Okinawa Toshi Monorēru Kabushiki-gaisha), it opened on August 10, 2003, and is the only public rail system in Okinawa Prefecture. Yui Rail is the first rail line on Okinawa since World War II. As Okinawa is the island of Japan lying farthest to the south and west that has an active rail line, Akamine Station and Naha Airport Station, the southernmost and westernmost rail stations in Japan respectively, lie on this line. It uses the OKICA as its contactless smart card, and integrates with Suica and other major Japanese IC cards (such as ICOCA or SUGOCA) from 10 March 2020.