Needless to say, lots of great hiking in the area. If you're near Beaver Creek the Beaver Lake Trail is spectacular. Download the AllTrails app to see find trails near you.
Vail has a really cute downtown area with restaurants and shopping.
Scenic views including meadows, valleys and plenty of wildlife - fun group activity.
If you're feeling adventurous book a tour with Wolf - he is truly one of a kind you will have the best time. He will take you through the mountains and provide lots of knowledge along the way.