The Osumi River canyon is one of the most spectacular natural attractions of Albania. During the spring, high water from melting snow make it possible to explore all 26 km (16 mi) of the canyon from the river. Spring is also the best time to view the many waterfalls in the canyons, which thunder from above as explorers pass below on boats. The rapids are Class-II, so one does not need prior white water experience to join the fun. At the end of the summer, when the water is lower, boating the full length of the canyon is not possible, but there are many wonderful hikes with opportunities for swimming in various pools and streams.