staying at Sundance, dining there and doing their zip line, biking, take lift up to Ray’s summit and hike over to Stewart Falls is a great time
Park City - staying at a summit watch is a good time and doing the stuff at the Olympic park
This next weekend is midway is Swiss days that may be something your wife really enjoys
I think downtown SLC can be a great time as well racing around on scooters, eat somewhere decent and see an outdoor show at the gallivan plaza