At the main island of Okinawa, land preparation developed to the sea side and many seacoasts were lost. The development of the artificial beach had progressed for suppling the lost coasts, and many artificial beaches were developed after “Emerald beach” was developed as the first artificial beach in Japan, 1975. In the suburbs, artificial beaches of beachpark type had developed in the place developed by reclaimed, and it is used by people. In this study, We verify the condition of the beach maintenance, the beach shape, the installation facility, the utility form and the management method for artificial beaches in the main island of Okinawa, and arrange the way of the seacoast use in the main island of Japan.

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