yosemite national park's vernal falls with a rainbow

waterfall water cliff terrain rock watercourse rapid stream river nature formation coast sea geology wave ravine mountain colorful rainbow belonging cascading waters vernal falls yosemite yosemite national park california john muir falls dome waterfalls merced river forest trees background water summer fall spring travel nature landscape green beautiful natural rock boulders stream outdoor swift rapids brisk flowing speed merced hiking wilderness woods cascade trail scenery northern tourism redwoods sequoias