Vrelo (Serbian Cyrillic: Врело) is a right tributary of the river Drina in the settlement of Perućac, Bajina Bašta Municipality in Serbia.

It forms a small waterfall and then flows mostly slow, with crystal clear water.

After it passes under the concrete bridge, it rapids over the natural obstacles made of rocks and tree roots.

It fastens, starts to resound and foam, before it reached the waterfall and falls into the Drina.

[2] Due to its length (same number of meters as days per year), many call it the "Godina" (Serbian Cyrillic: Година, lit.