Zermatt Resort and Spa

This look like a great place. A bit pricey, but tons of amenities, including a kids play center (day care). Here are some of the activities:

• Spa
• Basketball Courts
• Carousel
• Exercise and Wellness Center
• Games Plaza
• Gazebo (open air for entertainment)
• Gelatio Italian Eis
• Gift Shopping
• Jogging
• Sports Rentals
• Swimming (outdoor and indoor)
• Tennis
• Volleyball
• Zermatt Kidz Club

It is only 20 minutes from SLC too. Check out their website.