Flat and fertile. The Neretva River, I think begins in Bosnia and flows through Croatia to the sea. It's very picturesque, and a sharp contrast to the white karst barren hills along much of Croatia's coast.
The valley of the Neretva is called the “valley of tangerines”, the soil of the valley is remarcably fertile and has a unique microclimate. A variety of fruit and vegetable grows here — potatoes, tomatoes, mustard, watermelons, tangerines, pomegranates and oranges. Every year, about 60,000 tonnes of tangerines are harvested in the valley of the Neretva.