Graubünden in the largest canton in Switzerland, located in the southeast. This region has a lot of big mountains and famous destinations like Davos & St. Moritz.
Since Graubünden is a bit far from Zürich and other popular Swiss destinations, it’s best to stay at least overnight to maximize your time and enjoyment of the area. We particularly like Engadin St Moritz that has a summer mountain offer where all cable cars are free if you stay at a participating accommodation.
Here are links to the main regions in Graubünden, so you can explore near your home base.