Shikoku (四国, literally "four provinces") is one of the five main islands of Japan. Shikoku is the second smallest main island after Okinawa. Shikoku island, comprising Shikoku and its surrounding islets, covers about 18,800 square kilometres (7,259 sq mi) and consists of four prefectures:
Ehime, Kagawa, Kōchi, and Tokushima.
