bank bird blue countryside current England english flow gentle Great Britain natural nature peaceful placid reflection river rural sky spring Sussex swan tranquil tree water woodland branch edge landscape margin moss northern pretty shadow sunlight trunk wood animal black dog footpath green hillside labrador mammal North Downs path Surrey track trail walk animals cloud dramatic field grass mammals meadow passing sheep storm view Castanea chestnut exercise flowers trees trunks village wild autumn bridleway fall forest gate lane leaves shade shadows shady travel cereal crop distance long national park peace South Downs summer wheat alone Devon farm hedgerow isolated lone one single common home house leisure people playing pub white destination direction road Trek