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