The islands are then further divided into three regions called the Okinawa Islands, the Miyako Islands, and the Yaeyama Islands. Tripsavvy's Editorial Guidelines.

It is approximately 70 miles long and seven miles wide, with an area of 463 square miles.

Shizuko Mishima. Shizuko Mishima. Okinawa, ken (prefecture) of Japan, located in the Pacific Ocean. Okinawa is a prefecture of Japan, located 400 miles south of mainland.

Geography of Okinawa, Japan: Read this article to learn ten facts about the Japanese prefecture of Okinawa. Share Pin Email Ippei Naoi / Getty Images.

Shizuko Mishima is a life-long resident of Japan and author of "The Sushi Kit." Most of Okinawa's islands are made up of coral rocks and limestone. The most … The prefecture is composed of roughly the southwestern two-thirds of the Ryukyu Islands, that archipelago forming the division between the East China Sea to the northwest and the Philippine Sea to the southeast. Okinawa is the tropical southernmost prefecture of Japan. Learn about Okinawa's geography, history, climate and biodiversity from Geography at … Written by.

Over time, the limestone has eroded in many places throughout the various islands and as a result, many caves have formed. The main set of islands making up Okinawa is called the Ryukyu Islands. It is part of the Ryukyu island chain, and is surrounded by the East China Sea on the east and the Pacific Ocean on the west. The Okinawa Islands, Mapped Out. Naha is the prefectural capital. Updated 03/26/19.