autumn bridleway countryside England english exercise fall footpath forest Great Britain green lane leaves natural nature path rural shade shadows shady Sussex trail travel trees walk woodland disused estuary landscape line Mawddach peaceful railway river shadow sunlight track tranquil view wales water welsh eroded erosion panorama sign Soil summer warning wooden altitude blue canada cloud conifers distance distant far height high hike lake Lake Louise mountains range sky snow Trek atmospheric beam berlin biome germany grunewald light natural environment Natural landscape nature reserve ray rays shine shining shiny spot sun sunbeam sunbeams sunray sunrays tree vegetation walkway yellow gate arcadian farm fence field fresh hillside meadow pastoral peace South Downs spring country walker walking wood boundary british colour copper edge gold larch Larix margin path through the woods russet tawny uk