The crescent-shaped bay of Dadonghai Lake has a vast sea surface as crystal clear as a mirror, white sand, sunshine, clear water, beach and green trees, forming a beautiful tropical scenery, which was rated as one of the "40 Best Scenic Spots in China" by the National Tourism Administration. It is like spring all year round, with warm water and flat sand. The water temperature is 18 degrees in winter, making it an ideal place for winter swimming and vacationers to go diving, sea bathing and sunbathing. The seaside holiday tourism facilities in the area are complete, with hotels of different styles, large seaside squares, sightseeing submarines, diving and diving bases, and various water activities and beach sports all year round.