Horshoe Crab Museum
Kasaoka offers a blend of unique ecological and scenic attractions. The Kasaoka City Horseshoe Crab Museum, the world's only facility dedicated to horseshoe crabs, provides insights into these ancient creatures and their conservation. Offshore, Kitagi Island, known as "Stone Island," features the Ishikiri Valley Observation Deck, offering views of an active quarry with dramatic cliffs. Shiraishi Island, part of the Kasaoka Islands, boasts a 500-meter white sand beach, ideal for swimming and marine sports, and is recognized as one of Okayama Prefecture's top remote island beaches. The island also offers hiking trails leading to scenic viewpoints over the Seto Inland Sea