Extreme

Overview:- The Argun or Ergune is a 1,621 kilometres (1,007 mi) river that forms part of the eastern China–Russia border, together with the Amur River. Its upper reaches are known as Hailar River  in China. The Ergune marks the border

Overview:- The Congo River is a river in Africa. It is the second largest river in the world by discharge (after the Amazon), and the world's deepest river with measured depths in excess of 220 m (720 ft). The Congo-Chambeshi

Overview:- The Río de la Plata — rendered River Plate in British English and the Commonwealth and La Plata River (occasionally Plata River) in other English-speaking countries — is the river and estuary formed by the confluence of the Uruguay

Overview:- The Ob River also Obi, is a major river in western Siberia, Russia and is the world's seventh-longest river. It forms at the confluence of the Biya and Katun Rivers which have their origins in the Altay Mountains. It