bank blue canada current curved evening flow forest landscape light mountain natural nature river shadow shallows shore tree water calm England Great Britain mild rural sunlight Sussex tranquil trees uk winter bridge fast gravel jetboat riverbank scenic shallow speed sport transport willows crocodile cross crossing elephants Kenya mara mara river Masai Mara migration Serengeti Wildebeest green greenery rivers run running spring stream streams 1170993 black dark glint mirror reflecting reflection ripples sun waves attraction cliff conifers drop fall gorge holiday leisure tourism tourists vacation branches drooping english hanging riverside Salix Surrey weeping willow footpath High Up highest Kazakhstan landscapes Nature Backgrounds rock scenics Stepping Stone valley Wildlife. boat dock duero front line port porto Portugal stairs wall washing window autumn clean clear cold fresh indian summer long exposure moss mossy Mountain Creek rocks turquoise