Katazoegahama Beach

Katazoegahama Beach lies on the south coast of Suo-Oshima, the largest of Yamaguchi's Seto Inland Sea islands, connected to the mainland at Yanai by the toll-free Oshima Bridge. Ranked among the prefecture's top 100 beaches, it is known for a long arc of pale sand fringed with palm trees, a deliberate nod to the island's history of emigration to Hawaii that has earned Suo-Oshima the nickname 'Japan's Hawaii.' Because it sits inside the sheltered Seto Inland Sea rather than facing the open Sea of Japan, the water here is notably calmer and warmer than at Yamaguchi's northern beaches, making it one of the most reliable swimming spots in the prefecture through the summer months.

The beach is set up for a full day or overnight stay, with an adjoining auto-camping ground and cottages, plus showers, restrooms, and a seasonal beach shop, so many visitors combine swimming with camping rather than treating it as a quick stop. A rental car is the most practical way to reach it, driving across the Oshima Bridge and along Route 437 to the beach; a limited Bocho Bus service connects Yanai Station on the mainland with central Suo-Oshima-cho, though the final stretch to the beach itself is more easily covered by taxi or a pre-arranged transfer than by public transport.

Beyond swimming, Suo-Oshima's gentle, palm-lined coastline and mild climate support small citrus orchards nearby, and the island's museum of Hawaiian emigration history in Suo-Oshima-cho is a short drive away for visitors curious about the Hawaii connection. Sunset views across the Inland Sea toward the mainland hills are a highlight for those staying into the evening, particularly from the camping ground side of the beach.