Shonan International Marathon

The Shonan International Marathon is one of Japan’s most scenic coastal road races, held annually along the beautiful Shonan coastline near Tokyo. Famous for its long oceanfront sections, the race offers runners spectacular views of the Pacific Ocean, sandy beaches, and the iconic seaside landscapes of Kanagawa Prefecture. The course follows coastal highways and waterfront roads through popular beach communities including Enoshima and Oiso, creating a relaxed yet energetic running atmosphere. On clear days, runners may also enjoy distant views of Mount Fuji rising beyond the coastline. Known for its sustainability initiatives, excellent organization, and unique seaside setting, the Shonan International Marathon has become one of Japan’s most popular destination races for runners seeking a memorable coastal marathon experience.