A natural rarity, Jelasnica gorge is located 15km from the city and 3km from Niška Banja. Although small in size, 2km long, it has been declared a special nature reserve due to its peculiar flora and natural beauty.
Here you can see amazing stone formations, such as dolomite columns resembling teeth, kneeling figures and windows. Moreover, the gorge supports over 65 endemic and sub-endemic plants, some of which are very rare, such as Ramonda Serbica and Ramonda Nathaliae. In addition to the beautiful rocks and rich flora, there is also a charming waterfall here, along with the remains of a Roman fortification. Positioned between the villages of Jelasnica and Cukljenik, the gorge offers a few nice locations for camping and picnics. One of them is located at the end of the gorge and is equipped with benches for picturesque picnics. Opposite this place is a marked climbing track. Extreme climbing lovers should try free-climbing on the natural rock-face, organised by Niš Mountaineering Club.
A narrow path through Jelasnica gorge leads up to the elevated natural beauties of Bojanine Vode.