I'm looking into planning a vacation for me and my wife and two kids (ages 13 and 10) for next year, either President's Day week in Feb or Easter week in April. I would like to combine skiing for ~3 days with day hikes in some of the National Parks like Bryce, Arches, Zion, etc. I am particularly interested in hiking in a slot canyon and seeing some arches. For skiing I would like a low key resort with short lift lines and good powder (we have enough ice in NY!). It would be a plus if it were possible to stay right on the slopes at a reasonable price. Kids are intermediate skiers, and I would prefer to snowboard, though this is not required. We could fly into SLC or LV or anywhere else, and have nine days total. Any suggestions? I was thinking it might be better to ski two days first, then visit the parks, then ski one more day, in order to break up the skiing and not be too tired. Thanks!