In the late 1980s the Riverfree Club and Huck Finn Adventure Company pioneered commercial canoe, kayak and raft trips - one-day excursions and multi-day tours with camping. In the 1990s the Velebit area was declared a nature park. Rafting trips on Zrmanja take place in spring and autumn, while kayaks and canoes are used during low water level period of July and August.