Trebišnjica

The Trebišnjica (Serbian Cyrillic) is a river in Bosnia and Herzegovina, and the right tributary of the Neretva. Before it was utilized for hydro exploitation via various hydrotechnical interventions and systems with different purposes, Trebišnjica used to be a sinking river, rising and sinking through its course before resurfacing at various places from the Neretva river below the Čapljina to the Adriatic coast, and along the coast from the Neretva Delta to Sutorina. With a total length of 96.5 km (60.0 mi) above the ground, and roughly another 90 km (56 mi) below the surface, the Trebšnjica river is one of the longest sinking rivers in the world with the total of 187 km (116 mi) above and under the ground. In hydrological terms, it represents a sub-basin within the Neretva river basin. In classical antiquity, the river was known as the Arion.

Flows through: Bosnia and Herzegovina.

River data from Wikidata (CC0); lengths normalised to a common unit.