banks coastline distance distant estuary landscape low Mawddach mountains mudflats natural nature shingle tide view wales water welsh cliff drop fall force forest green melt norway norwegian power rock snow trees violent waterfall mountain Balearic Islands canal cloud majorca Mallorca reeds reserve sky Spain straight waterway beautiful beauty blue islet lake Lofoten Islands reflection shore summer boulder coast cyprus danger hazard horizon mediterranean reef sea shoreline England english Great Britain peaceful reflections ripples rural Sussex woodland coastal Cornish cornwall pool rockpool rocks rocky worn