ancient battlements castle defence defend defense defensive England english Great Britain historical history old secure security stone strong Sussex tower wall autumn branch bridleway color colour fall footpath nature oak Quercus shadow sunlight Surrey track trail trees trunk beach cloud coast landscape low tide resort sand sandy sea seaside shore sky somerset summer water background Cornish cornwall eroded erosion geology gray grey layers lines natural rock sedimentary silver texture worn blue clouds field green hills meadow peaceful rural South Downs tranquil access arch architecture door elements garden open studded vintage wooden beautiful beauty centre cultivar dahlia flower flowerhead head middle nestling petals pink unfolding white yellow cereal crop farm golden grain harvest ripe Triticum wheat