The name refers to the expanse of seawater separated from the Taiwan Strait by the Chingshankang, Wangtsailiao and Tingtoue sandbars. The quality of the water makes it highly suitable for raising oysters to be eaten raw. Chiku Lagoon is home to hundreds of species of fish, shellfish, crabs, and migratory birds, including four endangered bird species.
近年養殖漁業不景氣，溪南春經營人吳仲常認為養殖漁業必須尋求轉型，朝向休閒漁業發展，因此溪南春不僅保留養殖魚塭，吳仲常更於魚塭上架設「桶間寮」。