Aerial drone tilt up shot of a waterfall along an reservoir in Grimselsee along beautiful Swiss Alps, Switzerland on a bright sunny day

aerial drone shot tilt up waterfall water falling stream water flowing rocky cliff water grimselsee grimselpass high mountain road swiss alps alps cloudy daytime day grimsel pass swiss mountain switzerland valley mountain bernese europe grimsel grimselpass hotel grimsel landscape nature outdoors panorama pass reservoir rock rocky slope scenic slope swiss tourism tourist destination travel rocks rocky artificial lake snow capped peaks forward moving shot scenery hydroelectric generation traveling lake