The Great Outdoors
Ski Resorts
Alta
Brighton
Snowbird
Solitude
Park City (Deer Valley)
Hiking Mountain Biking
There are hundreds of places to hike and mountain bike.
Lakes/Reservoirs
The closest place to enjoy a lake with a beach, boating, water sports, the whole nine yards is at Jordanelle State Park.
Utah Lake is further south, and Pineview Dam/Willard Bay is further north. Jordanelle is a great spot that is closest to Salt Lake City.