Barito River
South Kalimantan is known as "the land of a thousand rivers", it is due to the large number of rivers in South Kalimantan. From these rivers, one of the well-known rivers is the Barito River, whose name is based on the Barito region (formerly "Onder Afdeeling Barito") which is upstream including Central Kalimantan, but is often used to name all of the watershed to its mouth at the Java Sea in South Kalimantan is called Muara Banjar/Kuala Banjar. Barito River is commonly used for buying and selling floating markets. In addition, there is also the Martapura River, a tributary of the Barito, which is located in the city of Banjarmasin and in the upper part is the city of Martapura, the capital of Banjar Regency.