Kozara National Park might be a place of unrivalled natural beauty, but hidden within the park is a shot of adrenaline like no other. Zip-lines, suspension bridges, ladders and cables make up the Adrenaline Park that is as exciting for kids as it is engaging for adults, with different levels of difficult for the entire range. If you’re looking for an adrenaline rush in most serene surroundings, you’ve found it.