Seopjikoji ro, South Korea offers 1 beach perfect for sunbathing, surfing, swimming, and more. Seopjikoji ro, Jeju do, South Korea, is known for its scenic coastal views, Seongsan Ilchulbong (Sunrise Peak), and the filming location of the popular Korean drama "All In." The best time to travel to Seopjikoji, South Korea, is in late spring (May), when the average air temperature is around 18°C (64°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!