bank canal cloud England english footpath grass Great Britain landscape path route slope Sussex track trail water cumbria field green lane meadow pasture road Rural area stone trees wall architecture bridge Cornish cornwall landmark pillar railway river train transport viaduct branch oak Quercus spring tree trunk woodland bare branches hedge nature winter cereal crop farm immature natural row wheat young harvest hill rural South Downs summer boat coast dinghy estuary mast moored reflection sailing shore yacht drought folly lake park sky Surrey