Vinh Long is on the Co Chien river, which branches out from the Mekong at the narrows of My Thuan about ten km upstream from Vinh Long, only to meet it later downstream. Across the Co Chien from Vinh Long are the An Binh and Binh Hoa Phuoc islands, some fifteen km across, with the main Mekong river on the other side. A number of canals run through Vi~nh Long, as well as the islands, with tall pedestrian/motorcycle bridges crossing them.