The Trebišnica River is one of the most beautiful natural rivers and ecological features in Trebinje, and the river passes through the city center like a proud beacon of life, giving the city a light air and a distinctive atmosphere. In the past, the river was one of the longest submerged rivers in the world, but today it is one of the distinctive landmarks that tourists come to especially. The river feeds all the surrounding areas and passes through it, so you will see forests of green trees surrounding this river.