When it comes to the origin of sea cucumbers, everyone thinks of Shandong and Dalian, but ignores Qinhuangdao. Bohai Bay in Qinhuangdao is also 39 degrees north latitude, which is the cradle of sea cucumbers. Qinhuangdao has clear sea water, suitable temperature, four distinct seasons and alternating hot and cold, which is the most suitable place for sea cucumber to survive. Qinhuangdao Port is located between 39 23 ′ and 40 37 ′ north latitude. It will not freeze ice all the year round, and it is also the only big port that will not freeze ice. This is due to the Kuroshio warm current, which is the second largest warm current in the world. The warm current comes from the waters near Java Island, passes through Luzon Island, kalimantan island, China, Xiayi, Taiwan Province Province and Ryukyu Islands, and continues northward. Impartially hit the coastline of Qinhuangdao on the northwest coast of Bohai Sea. The beaches in Qinhuangdao are medium sand, fine sand and clean golden beaches, which are suitable for the growth and reproduction of sea cucumbers. Therefore, compared with the increasingly chaotic sea cucumber market in Dalian, Shandong Province, the sea cucumber in Qinhuangdao will win the trust of consumers with its quality. ..