Despite being short, the river has quite a large watershed, covering 5,187 km², because the whole drainage area of Lake Shkodër, the largest lake in southeastern Europe, is also part of it.
Also, thanks to the waters from the Great Drin, the Buna / Buna ranks second place among all tributaries to the Adriatic, measured by the annual discharge, after the Po in Italy (with a mean of ca 1540 m³/s).

Buna is navigable throughout its whole course, depending on the size of the vessel.
Despite being short, the river has quite a large watershed, covering 5,187 km², because the whole drainage area of Lake Shkodër, the largest lake in southeastern Europe, is also part of it. Also, thanks to the waters from the Great Drin, the Buna / Buna ranks second place among all tributaries to the Adriatic, measured by the annual discharge, after the Po in Italy (with a mean of ca 1540 m³/s).
Buna is navigable throughout its whole course, depending on the size of the vessel.
Bojana (river)