Protection of Neretva Canyon at Reichstag

The Neretva flows through Bosnia and Herzegovina and Croatia and is the largest karst river in the Dinaric Alps in the eastern part of the Adriatic basin, which belongs to the Adriatic river watershed. Its total length is 230 kilometres (143 miles), of which 208 kilometres (129 miles) are in Bosnia and Herzegovina, while the final 22 kilometres (14 miles) are in the Dubrovnik-Neretva County of Croatia.[7] The Neretva watershed is 10,380 km2 in total; in Bosnia and Herzegovina 10,110 km2 with the addition of the Trebišnjica river watershed and in Croatia 280 km2. The average discharge at profile Žitomislići in Bosnia and Herzegovina is 233 m3/s and at the mouth in Croatia is 341 m3/s in addition to the Trebišnjica River’s 402 m3/s. The Trebišnjica River basin is included in the Neretva watershed due to a physical link of the two basins by the porous karst terrain.[7][8]
The hydrological parameters of Neretva are regularly monitored in Croatia at Metković.