Tanmen Fishing Port, as the largest and most famous seafood market in qionghai city, has also become a seafood mecca where delicacies gather. There are the freshest seafood, shellfish, mollusks, shrimps and crabs, shrimp slices, shrimp skins, fish fillets, sea cucumbers, kelp and many rare species from the deep sea.

Qionghai consists of Jiaji, Boao and Guantang. Located on the eastern coast of Qionghai, 20 kilometers away from Jiaji City, there is a Tanmen Town, which was once a famous seaport as famous as Puqian and Qinglan in Wenchang, and played a very important role in the battle for territorial sovereignty in Hainan.