bay breakwater coast England Great Britain groyne incoming kent sea shallow shore summer tide water wave chalk cliff coastline HDR hill moss Nyberg ocean slope sun sunlight sunshine waves Cornish cornwall cross english landmark monument rocks beach break Dorset harbour Lyme Regis resort sunny winter cloud horizon landscape reflection sand sky boat choppy concept danger folded origami paper rough storm stormy vulnerable white natural nature Pembrokeshire wales welsh daybreak early movement satin slow sunrise surf yellow atlantic blue children dripping droplet droplets force fun green kid kids outdoors outside power rock saltwater splash sports tidal tides wet bird breakers fly flying gull seabird seagull swoop swooping wind windy channel islands islets Maddalena mediterranean Sardinia tiny tourism