Dong yul ri, South Korea offers 1 beach perfect for sunbathing, surfing, swimming, and more. Dong yul ri is known for its proximity to the scenic Dadohaehaesang National Park and the historic Naganeupseong Folk Village. The best time to travel to Dong yul ri, South Korea, is in late spring (May), when the average air temperature is around 20°C (68°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!