Trebjesa - park forest, the lungs of the city, one of the most visited Niksic picnic sites. It is located only a few hundred meters from the city center and attracts a great number of athletes, recreationists, tourists, young people and people in the third age who want peace and clean air. By the decision of Municipal Council of Niksic, in 2000 Trebjesa was declared a protected natural good – Natural Monument. At the foot of Trebjesa hill there are terrains for various sports activities. The mountain biking trail on Trebjesa, in a circular shape, 5.8km long, with its beauty and arrangement, is an ideal place for organizing various competitions and sporting events.