Lost rivers are Dinaric streams in karst, limestone landscape that disappear in the underground. They often flow in karst plains.| World Rivers
Discover what a river source is, how it forms, the types of sources from glaciers to karst springs, and why finding the true source—like the Amazon's—is so complex.| World Rivers
Explore the most beautiful river springs in Croatia, from the turquoise eye of Cetina to emerald pools of Kupa and Una.| World Rivers
Explore the most beautiful river sources in the world, where great rivers begin their journey.| World Rivers
The Drava River is one of the last remaining lowland rivers in Europe. In Croatia and Hungary, it is largely free from dams and excessive regulations and harbours great biological and landscape diversity.| World Rivers