Buna Canals on Neretva river

The Buna Canals are a natural phenomenon on the Neretva River. It is located near Buna, south of Mostar along the main road M-17 Mostar - Čapljina.
It is a narrow channel through which the Neretva flows, and its left tributary, the Buna, flows into it over a travertine barrier at that place. After the Buna Canals, the Neretva calms down, and the bed widens, which is typical for lowland rivers.
There are proposals to protect this area by law.