Yamaguchi Prefecture

Yamaguchi Prefecture lies on the western tip of Honshu, facing the Sea of Japan and the Seto Inland Sea. The region offers modest coastal diving along sheltered bays and rocky coasts, with generally calm conditions and cooler water compared with southern Japan. Dive sites are few and can include small rocky reefs and beaches accessed from coastal towns. The area is more about accessible shore access and local coastal exploration rather than a renowned large dive destination. Expect temperate water, variable visibility, and a focus on macro life and coastal habitats rather than expansive pelagic zones.