summer view of wooden walkway on the territory of sestroretsk swamp, ecological trail path - route walkways laid in the swamp,

architecture autumn baltic blue boardwalk district drone ecological ecology footpath forest green kurortny lake lakhta landmark landscape leningrad national oblast outdoor panorama park path pathway petersburg pristine razliv reserve river road russia sea sestra sestroretsk siestarjoki st street suburb summer swamp tour tourism town track trail travel urban view walk wooden