Ca Mau has a dense and interwoven system of rivers and canals like a spider web with a total length of more than 7,000km, an average density of 1.34km/km², and a total water surface area of ​​15,756ha, accounting for 3.02% of the province's natural area. There are many main rivers flowing into the West Sea (Gulf of Thailand) such as Bay Hap River, Ong Doc River, Trem Trem River, Cai Tau River, Bach Nguu River, Dong Cung River. Of which, Bay Hap River is more than 50km long. Bay Hap Gate also has other names such as Go Cong Gate, Rach Cheo Gate connecting to Ca Mau Cape (Ngoc Hien District). Photo: Hoang Giam.