aerial panorama view of calanca valley and swiss alps in grisons on the hiking trail from rifugio pian grand to capanna buffalora

activity aerial alpine alps background beautiful bernardino blue buffalora calanca destination europe european forest grass graubuenden graubunden grisons hike hiking landscape meadow mountain nature outdoor panorama panoramic path peak range rock san scene scenery scenic sentiero sightseeing sky summer summit swiss switzerland terrain tourism trail travel trekking trip vacation valley view