Karhunkierros is a hiking trail that stretches from Salla to Kuusamo in north-eastern Finland. The route was first marked in 1955, and has since become the most popular hiking trail in Finland, attracting some 15,000 hikers every year, mainly over the high season lasting from mid-July to late September. The trail is approximately 80 kilometres (50 mi) long, and runs for the most of its length within the Oulanka National Park.
The trail has two main starting points. The paths starting at Hautajärvi and at Ristikallio converge at Taivalköngäs, from where the trail continues along the Oulanka and Kitka rivers towards Rukatunturi fell. Starting from Hautajärvi makes the total length of the trail 80 kilometres, while the Ristikallio variant is some 9 km shorter. The route is marked with orange paint markings in trees and rocks.