Activities for Families/Children/NonSkiiers:

Snowbird is mostly for skiing, so if you are looking for other activities, you may consider going to Salt Lake City or Park City for more activities

Check out this website for lists of things to do.  Below are some ideas for activities.

Ski and Board Rentals

There are lots of places. Generally, rentals will be cheaper away from the slopes. One place to consider is the Ski N See at Hyatt Place Park City. Another is Utah Ski and Golf, which has a location right by the canyons.

Utah Museum of Natural History

One of the best exhibits of dinosaurs and other prehistoric fossils. 

Woodward Mountain Park

Tubing and ski park with conveyer belts “magic carpet”. Ride giant inner tubes down a hill. Lot of fun for little kids. Also has a brand new indoor skate park/BMX park and foam pit/trampolines/parkour.

Midway Ice Castles

Giant Castles made of Ice, with LED-lit sculptures, Ice-tunnels, slides, fountains. Perfect if you have an Elsa-obsessed child.

Horseback Riding

Multiple companies offer this, but here is one.  Soldier Hollow also offers Tubing, Cross Country Skiing, and Snow Shoeing

Dog Sledding

 Several Companies offer this as well. This company has tons of other activities: snowshoeing, fly fishing,

Cross Country Skiing

Nordic Skiing at Alta. Solitude also has a great nordic center, although it's a bit farther off.

Snowshoeing

Why walk in the snow, when you can walk in the snow with tennis rackets strapped to your feet?

Snow-Mobiling

A great way to see the outdoors while pretending you are an evil henchman in Die Another Day.

Winter Fly Fishing

Just like regular fishing, but colder.

Horse-Drawn Sleigh Ride

the Snowed Inn Sleigh company does rides in the evening. Pair with some fireside dining.

Spas

There are so many:  A favorite is the Waldorf Astoria, which is right next to the Canyons Park City. Other places to consider is the Montage, Deer Valley or the Stein Eriksen Spa. The Montage also has hot chocolate and smores every day at 4PM.

Visit the Salt Lake Temple

Visit the temple grounds and visitor’s center. The temple itself is closed to non-Mormons, and it will be undergoing renovation anyway, but the grounds and visitor center are an interesting introduction to the “American Religion.”  Come and listen to the Mormon Tabernacle Choir, one of the greatest choirs on earth.