Aerial flyover alongside the Bettmerhorn next to the longest glacier in the Alps - the Aletsch glacier in Valais, Switzerland on a sunny summer afternoon

aletschgletscher gletscher aletsch glacier bettmerhorn eggishorn fiescheralp glacial riederalp fiesch valais alps jungfrau moraine swiss alps mountains mountain crevasse suisse wallis swiss alpine altitude ice schweiz switzerland aerial landscape environment climate change frozen hike europe drone hiking melting big longest nature cliff bettmeralp adventure cold wanderlust flight fly spring summer sunset