You may want to visit the Thermal Bath (http://www.therme-vals.ch/) in Vals.
Hiking
Is the main activity in the summer. cable-cars, railways and ski-lifts can help you up or down in some places, or you can go it alone on the thousands of trails that wind across the mountains, valleys and lakes of graubã¼nden. the views are absolutely stunning.
Skiing
Is the biggest winter-time activity in graubã¼nden. there are resorts throughout the engadin valley, st. moritz being the most famous, but also in the prã¤ttigau valley, davos and klosters, and the surselva valley. flims laax falera is among the biggest. apart from these larger famous resorts there are many smaller resorts to be found throughout graubã¼nden. there are 2,200 km of ski pistes in the canton. (http://www.graubuenden.ch...)