Graubünden has every colour: Red for the Rhätische Bahn railway, yellow for the postal buses, blue for its 615 lakes and the skies above 150 valleys, green for forests and pastures, golden brown for larch trees in autumn, grey for castles and rocks, and white for snow and ice. <br>Choose red to take the Rhätische Bahn to Klosters, Davos, Arosa, St. Moritz, the Surselva region, the Engadine and Valposchiavo. Choose yellow and see Savognin and the Müstair valley, Lenzerheide, and the Mesolcina and Bregaglia valleys by postal bus. Pick grey for climbing a sheer rock face, and white for storming peaks and traversing glaciers. Or simply sit down on a patch of green and enjoy azure skies above.