daiku 
“A nature walk destination where you can enjoy vast tidal flats and observe migratory birds”
Located along Yonaha Bay in Shimoji, Miyakojima City, Okinawa, Sanitsu Beach Interaction Park is a nature-rich park beloved by locals and visitors alike. At the entrance, a large statue of a Miyako horse welcomes you, and the well-maintained lawns and walking paths allow for leisurely strolls along the shallow shoreline, all while enjoying the scenic beauty of the island. This area is designated under the Ramsar Convention for its ecological importance, and during low tide on spring tides, the expansive tidal flats become a prime spot for observing various marine life. It is also well-known as a location for birdwatching, especially for migratory birds.
Every July, the Sanitsu Beach Carnival is held here, featuring unique events such as beach volleyball during low tide, sumo wrestling tournaments, youth soccer matches, and even a human-powered “pull-the-horse” competition. Additionally, the Miyako Sumo Tournament is held every October, attracting many local residents and tourists.
The park is equipped with convenient facilities such as parking lots and restrooms, making it a comfortable spot for families and nature lovers alike. Surrounded by the vast tidal flats and the grandeur of nature, Sanitsu Beach Interaction Park is a perfect place to fully experience the rich natural environment of Miyakojima.
Location: Yonaha Bay, Shimoji, Miyakojima City, Okinawa Prefecture