If the idea of falling perilously over stunning waterfalls with only your skill, resilience and a dinghy for safety (well, safety gear) appeals, you are in all sorts of luck. Discover Bihać actually focuses most of its action on nearby Una National Park, with rafting on the Una and more available. The organisation is based in Kulen Vakuf. Groups of four are the minimum for a booking, although individual travellers should get in touch and see if any spots are available. The rafting starts with šljiva, which should give you an idea of what to expect.