Perućica, a pristine primeval forest nestled within Sutjeska National Park in Bosnia and Herzegovina, offers an unparalleled natural experience. While parts of the national park are accessible for solo exploration, venturing into the core primeval forest, especially to witness the majestic Skakavac Waterfall, is strongly recommended or even required with a licensed park guide for safety and ecological preservation, given the rugged terrain. The optimal time to visit is from late spring to early autumn (May to October) to avoid harsh winter conditions and heavy snow that can render trails impassable. Costs typically include a modest entrance fee for Sutjeska National Park (a few EUR), with guided tours into Perućica being an additional expense that varies. A typical visit focused on Perućica and its highlights, like the waterfall, can range from a half-day to a full day. Visitors should be prepared with appropriate hiking gear and respect park regulations, as no overnight stays are permitted within the strict forest reserve.