white glider aircraft or sailplane in the clear blue sky over the klöntal swiss alpine valley kloental or klontal

active activity adventure aeroplane air aircraft airfield airline airplane airport alpine alps aviation background blue canton clear cloudscape cockpit commercial flight fly freedom glarus glide glider gliding high hobby jet journey kloental klontal klöntal landing landscape leisure massif motion mountain nature outdoor plane powerless recreation recreational sailplane schweiz sky soar soaring speed sport sports swiss switzerland technology tourism transport transportation travel trip valley vehicle view white wind wing wings