baby chick down duck duckling feather feathers lake pond river splash swim swimming wake water young boat clouds current estuary forest green hills launch Mawddach ripples sky tidal wales welsh Banff canada danger dangerous fierce flow foam natural nature rage rapids rocks violent bank banks canal channel fall falls grass lawns shore stone stones waterfall waterfalls yard black color colors colour colours purple red reflection rise sun sunset yellow architecture building England english Gloucestershire Great Britain historical mill old rural village watercourse watermill autumn blue clean clear cold fresh indian summer long exposure moss mossy Mountain Creek turquoise brook cascade dam mountain pebbles stream wet wood woods arch beams bridge landmark piers supports timber wooden