Dong gu, South Korea offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Dong gu is known for the Donghwasa Temple and the Palgongsan Mountain in regard to tourism. The best time to travel to Dong-gu, 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!