On the south side of Jeju Island, Seogwipo offers swanky hotels, rugged cliffs, popular beaches and gorgeous waterfalls. The volcanic-rock cliffs located around Jungmun beach are a wonder. Make sure to visit the viewing platform to take in the spectacular vistas. A coastal city, Seogwipo's many activities revolve around the ocean, including diving and submarine tours. Many of the restaurants specialize in fresh, local seafood. There's also much to see and do inland, including temples, art museums, amusement parks and botanical gardens.