Located between Yulin Port and Luhuitou in Sanya City, Dadonghai is rated as a 4A level scenic spot and the first free open scenic spot in Sanya. Dadonghai boasts crescent-shape bay, mirrored vast sea and fine white sand. Sunshine, clear water, sandy beaches and green trees constitute a beautiful tropical scenery, which is rated as one of the "Top 40 Scenic spots in China" by the National Tourism Administration. Here, each season seems like spring. The water is warm, the sand is flat and the water temperature is 18 degrees centigrade in winter, which makes here an ideal place for swimming in winter and diving, sightseeing, sea bath and sunbathing for vacationers. The seaside tourism facilities in the area are well equipped, with hotels of different styles, large seaside plazas, sightseeing submarines, diving bases. a variety of water sports and beach sports are carried out all the year round. Around 300 to 400 meters eastbound along the beach is a small coastal park. There is a hill in the park, and a pavilion on the top of the hill, which overlooks the scenery of the sea. There is an egret park, which is a paradise for egrets. Egrets can be seen everywhere by and in the middle of the lake.