The group of hills called Szénás is situated near Budapest, near the border of Nagykovácsi. Visitors can enjoy the unique natural values of the area by walking along the 2,4 km long, carefully designed study trail. The speciality of the territory is given by several endemic plant species which have spread in a very small area. These plants include the tufted yellow flex, the fragrant cottage pink, the Buda sorb tree and the dolomite seseli.