chalk destination direction England english eroded erosion flower footpath Great Britain hill national park natural nature slope South Downs summer Sussex track trail travel Trek wild worn block blocks brick bricks cobblestone path pathway pattern pavement paver road scene sidewalk street texture textures walkway boulders countryside exercise green hike hillside landscape mountain norway norwegian rock snow walk downland Surrey view enjoyment fresh fun leisure outdoors rural spring trees autumn branch bridleway color colour fall shadow sunlight trunk woodland Beech Trees country road dirt road forest pine trees Spruce Trees sunbeams woods field fields Gower grass peace peaceful tranquil wales welsh benches London park quiet Regent's Park seats deciduous ecology quality shade gate meadow metal signpost