The river Vardar

My favorite part of Skopje so far is the river Vardar, which runs through the city. It has a nice path that runs alongside of it where people ride their bikes, rollerblade, and go running, although I get the impression that most of the runners are ex-pats. I've seen several goats grazing on the river banks and I've also seen locals fishing in the river, something which I personally would feel a bit leery about, since the river doesn't seem to be particularly clean. Parts of it are quite nice, but other parts have a lot of litter.