One of the most visitable places in Hawaii. The Waimanalo Beach Park has the longest beach on Oahu Island, about 9 kilometers long. Beach parks are equipped with lifeguards, toilets, showers, picnic tables, and campsites. Although it has been rated as the best beach in the United States in 2015, the camping environment here is not optimistic, and some areas are occupied by tramps'tents. The sand on the beach is very delicate, the sea water is very blue and beautiful in good weather, and there are few visitors upstream of key beaches. A Japanese submarine ran aground in Pearl Harbor during the Japanese attack on Pearl Harbor on July 1. A Japanese soldier was captured by the US army, making him the first prisoner of war captured by the US in the Pacific War and World War II. By Youli Zhao