Desemboca a la mar de la Xina Meridional prop de la ciutat de Vinh, al golf de Tonquín. El pont de Ben Thuy connecta Vinh i Ben Thuy, port a la desembocadura del Ca.
En més de 300 km de long, el riu és classificat pel "Vietnam Geographical Survey".[2]
Notes i referències
↑Marine research in Indonesia: Issues 16-20 - Page 229 Lembaga Oseanologi Nasional (Indonesia), Lembaga Ilmu Pengetahuan Indonesia - 1976 "The Ca River is the longest river in the central part of Vietnam, the main length belongs to Nghệ An and Hà Tĩnh provinces. This river possesses abundant natural resources and habitats of many valuable plants and animals"
↑Journal of geology: Issues 9-12 Cục địa chất Việt Nam - 1997 "2. 7. Cả River zone: This zone lies along the Cả River and Rào Nay basins, with a length of 300 km"