Rzav river is pretty important for Arilje.
Not only that its waters are suitable for fishponds, but there are also numerous beaches along its banks. The City Beach is easy to reach by foot, following the trail from the town center.
There is also the Narrow Whirl (Uski vir in Serbian), about one km from the center, the small island where the ARLEMM festival takes place every summer. The festival is a genuine celebration of classical, traditional, spiritual music, and jazz with numerous performers and thousands of visitors.
Further away there are Yellow (Žuta) and Green Beach (Zelena plaža) to be found, among others. Some offer wallyball or football terrains, while others organize live music shows in the evenings.