Ehime Prefecture

Ehime Prefecture is on the Shikoku island's northeastern coast, offering access to temperate coastal diving along Ishizuchi, the Uwa Sea, and nearby islands. The region's dive scene centers on sheltered bays, rocky reefs, and occasional wreck sites accessible from Seiyo and other coastal towns. Expect clear water in summer with seasonal currents and plenty of marine life such as small reef fish, octopus, and sea slugs. Inland considerations include ferry connections to nearby islands and water visibility that varies with weather; this region provides calm, accessible diving for recreational divers rather than deep, long-range explorations.