Keystone would have to be one of the best ski resorts for families, anywhere in the world. The Vail Resorts owned resort has packed a ton of kid oriented activities into the village and on the slopes. From ice castles to organised snowball fights to a parade, one would be forgiven for thinking you're at Disneyland. Fortunately there's also plenty of family friendly condos, it's gentle on the wallet and it's easy to get to - just a two hour drive from Denver Airport.