ancient background Cornish cornwall England english Great Britain old stone texture wall gray grey lichens orange roof tiles algae aquatic life marine natural nature plant rock seaweed architecture Cotehele garden national trust rural summerhouse Thatched wooden capture crab fishing frame lobster netting pots traditional trap blue flowers Scilla verna spring squill wild cafe enter grunge grungy open sign teashop welcome bridge landmark pillar railway river transport viaduct water