blue boat cliff cloud coastline flowers Great Britain green island natural nature Pembrokeshire plants rocks rocky sea shore Skomer sky united kingdom view wales water welsh wild yacht anchorage bay harbour panorama shelter animal Brecon Beacons footpath grass graze hills landscape mammal mountain rural sheep sunlight track trail walk birdwatchers cattle cows distance distant hillside islands twitchers Armeria christian coast death grave gravestone historical lichens memorial old peace religion religious Remains remembrance spring stone thrift wall bracken clouds forest Gower hill Pennard Pill river Three Cliffs Bay trees valley home house isthmus quality rock changeable fey fickle lake moor mountains road route shadow stormy coastal danger exercise path steps travel Trek wander countryside disused estuary line marsh Mawddach peaceful railway tranquil walkers