The height of Alpine beauty

Today we're exploring a place of otherworldly beauty: the Jöriseen, a group of alpine lakes near Davos, Switzerland. On sunny days, the lakes glow an ethereal blue, contrasting with the dark, jagged Silvretta Alps that encircle them. The sunlight is reflected in the water by 'rock flour'—silt-sized rock particles generated from the grinding of bedrock by glaciers.