bridleway disused estuary footpath green Gwynned hills landscape Mawddach natural nature path railway line route saltmarsh spring track wales welsh woodland background bark branches conifer cool dappled England english evergreen Great Britain light refreshing shade Surrey tree trunk countryside current fierce flow montane moss mountains norway norwegian pour powerful river rock trees valley violent water bank cone Fir forest grass lake loch peaceful pine reed reeds ripple shire tranquil wood cold country Devon field hill hillside meadow rural snow snowy uk winter wintry exercise leisure outdoors slope trail beech creepy eerie Fagus sylvatica high holly ilex standard tall understory cloud horizon panorama sky South Downs summer Sussex view village Weald lane quiet road logs management travel walk Betula birch deciduous sunlight trunks white