In geography, a confluence is the meeting of two or more bodies of water. It refers either to the point where a tributary joins a larger river, called the main stem, or where two streams meet to become the source of a river of a new name. The confluences in the photos below create dramatic visual contrasts.
Confluence of the Rhone and Arve River in Geneva, Switzerland. (source)
The Junction (La Jonction) where the river Arve meets the river Rhône in Geneva. (source)
Confluence of the Ilz, Danube, and Inn Rivers in Passau, Germany. (source)
Confluence of the Alaknanda and Bhagirathi Rivers in Devprayag, India. (source)
Confluence of the Rio Negro and the Rio Solimoes near Manaus, Brazil. (source)