Such occurrences led to the slow decay of the Monastery of Saints Sergius and Bacchus, located right on the bank of the Buna river.

After flowing around the Peak of Tarabosh, it passes through the villages of Zues, Bërdicë, Darragjat, Oblikë, Obot, Shirq, Dajç and Goricë.

On this border section, which is 24 km (15 mi) long, the river meanders widely, flowing around the lakes Šas and Zogajsko blato, both in Montenegro.

It was supposedly formed around a ship's wreck in the 19th century, and now covers an area of 6 km2 (2.3 sq mi), and is Montenegro's largest island.

Buna river ranks second among all tributaries to the Adriatic (measured by average annual discharge) after the Po in Italy.