nature walkway in springtime serenity

track tree forest trail transport walkway autumn woodland nature bridge wilderness wood waterway soil leaf landscape grass wetland wooden path park boardwalk sky trees road outdoors adventure backdrop horizontal biosphere reserve europe excursion footpath hiking land moor eyes conservation spring evening swamp bog latvia marsh quagmire fen mire slough morass peatland pinetree great kangari swamps lielie ropaž tranquil wetlands winding marshland springtime serenity