"We are striving to become a base city for the surrounding sea and islands, a city of individuality and brilliance where people are considerate of each other, a city with strong ties between other cities and towns in the area, throughout the country and world." This is the goal of Hiroshima Prefecture's Kure City. The Kure Chiiki Kaiyo Konwa Kai, which is the advisory board of the mayor of Kure city, explains its idea of "sea-based waste disposal by a mobile offshore plant." This is their project proposal, which is aimed at the promotion of the marine environment industry in the Seto Inland Sea.