The Buna River is a short but powerful tributary of the Neretva River in Bosnia and Herzegovina. It is known for its strong karst spring near Blagaj.
The river emerges from a cave at the base of a high cliff in Blagaj. This spring is one of the strongest in Europe.
After a short course, the Buna flows into the Neretva River, contributing clear and cold water.
A little website about river Neretva in Bosnia and Croatia.