under consideration. With this expansion, the Sutjeska National Park will become the largest protected area not only in the Republic of Srpska but also in the whole country. Sutjeska National Park and the adjoining Durmitor National Park in northwestern Montenegro demonstrate transboundary protected area co-operation in the former Yugoslavia. The park is accessible throughout most of the year but with some restrictions during part of the winter. It is accessible by road from Sarajevo– and Dubrovnik, Croatia–. The connecting highway is Belgrade-Visegrad-Herceg Novi. Trebinje-Foca road passes along the canyon walls through thick forests leading to the park. The valley opens at the northern edge of the park. Foča city, near the border with Montenegro, is away from the park and the nearest town is Mratinje. Bosnia and Herzegovina's highest peak, Maglić Mountain, directly on the border with Montenegro, presents a challenging climb for even experienced hikers. Zelengora mountain is popular with hikers and there are several newly renovated mountain huts on the mountain slopes. Tara River is noted for white water rafting. Perućica Perućica Forest Reserve, located within the park, is long, wide, and has an area of . It is a UNESCO recognized site. The forest has many trees that are 300 years old, and the primeval forest's vintage is stated to be 20,000 years. In some stretches the forest growth is almost impenetrable. Skakavac waterfall Skakavac waterfall is formed on the Perućica, a small river, or more precisely mountain creek, located deep within Perućica primeval forest, which is regulated in form of Strict Nature Reserve as part of the Sutjeska National Park in Bosnia and Herzegovina. It is one of the highest waterfalls in the country, about plus in height, and it is hidden deep within Perućica primeval forest and its massive blanket of green trees of beech and spruce that engulf entire valley. Perućica primeval forest is situated underneath the highest peak in Bosnia and Herzegovina, Maglić (2386 m) and separated from the Zelengora mountain by the Sutjeska river and it's impressive, deep and rugged canyon. The Perućica creek cut through the Perućica forest, and down and between two steep Maglić slopes. Somewhere in the middle of its course stream cascade from the upper hanging valley to the lower valley, falling across a large karstic limestone ridge to a precipice 75 meters deep, after which the Perućica creek reaches the confluence with the Sutjeska river at the