countryside England english exercise field footpath Great Britain green landscape meadow natural nature outdoors path rural spring Surrey track trail tree walk direction footbridge forest Sussex travel trees woodland bridleway grass leisure park verge bare beginning branches fence start winter cloud farm oak parkland sky summer wiltshire bench picnic table wooden bark foliose gray grey lichens plants Quercus cumbria drystone wall hill knoll rocks slope autumn farmland fields hills panorama view hedge lane peace road rustic Curbar Edge Derbyshire fell ridge stone wall