The last stage of the border Bug begins in Pratulin. The second part of the river is characterized by long straightsections, and its width reaches up to 150 m. The river here resembles a very wide channel, and water tourists can get the impression that the water has no end. The steep slopes of the riverare home to kingfishers. Ostoja Nadbużańska is a habitat of European beavers and otters and several species of fish, including: asps, spined loaches, weatherfish and bitterlings. A pond turtle is also found here. Before swimming, it is worth visiting the horse stud in Janów Podlaski. 

Go there by car, because from the river there is neither a good exit nor a good access to attractions nearby, and the distance from the river in a straight line exceeds 1,500 m. This is a part of the Podlasie section of the Bug River. The bottom and banks are sandy, and rocky. The banks are overgrown with dense thickets of weeds. They are steep and exceed 30 m of relative height. The main stream abounds in islands, point bars and beaches, as well as mid-river shallows. It is an area with numerous oxbow lakes filled with water, which is part ofthe Podlasie Bug Gorge Landscape Park.