Family is going to Park City next week - ski conditions aren't great. Other recs??

My family gets together for a Christmas trip every other year. This year we scheduled a 4-day ski trip for Park City, but unfortunately the conditions are looking pretty bleak. Only 18 runs currently open and no snow in the forecast for the next 10 days. That might be okay for 1 day of skiing, but certainly not 4. I think we will likely go snow tubing - but definitely looking for other fun recommendations to do with the family.

For context, here is family makeup: 9 people in total - Mom and Dad in 60's, 6 adults from ages 32-23, 2 of which are pregnant women (both 4 months along), one young child (1.5 yrs old).

EDIT: Also posting in r/parkcityvisitors