“Under the Green Oak” tourist rout - about 1 km long. It is situated on the Orlanka River in the vicinity of the village of Orla. The beginning of the rout is situated at a tarmac road from Orla to Dubicze Cerkiewne. Previously the Orla – Kleszczele trade route existed here. Interesting places among others are: the group of old pines by the meanders of a river, the steep precipice carved by water, beaver dams, trees and trunks after preying of beavers, the rich aqueous, forest and meadow flora. At the end of the rout there are the remains of the hill constituting a well-known place called “Under the Green Oak”.