algae beach coast Great Britain green natural nature Pembrokeshire plants pool rock sand sea seaweed shore united kingdom wales water welsh America aquamarine blue boulder clean clear cold fast flow pure river transparent area bath flowers holiday hotel Lanzarote palm parasol sky Spain sun sunshade sunshine trees vacation aquatic lake Lofoten Islands mountain norway norwegian pond reeds reflection stems autumn blur bridge eddy flood grass light pools power rocks spray stones textures waterfall boat boathouse boating ducks fountain geese landscape outdoors park tranquil tree Australian branches bush bushland calm foliage peace peaceful reflected ripples scene scenic soft still waters upside down color colour copper dusk England english gold orange reflections still Sussex canal cloud February restful turning winter