Ariake Sea
Saga is the capital and largest city of Saga Prefecture, with other major cities including Karatsu, Tosu, and Imari. Saga Prefecture is located in the northwest of Kyūshū covering an isthmus-like area extending between the Sea of Japan and the Ariake Sea. Saga Prefecture's western region is known for the production of ceramics and porcelain, particularly in the towns of Karatsu, Imari, and Arita.