Next July our family will be spending a day in Park City and the kids want to ride the different coasters / ziplines / etc at Park City Mountain Resort. We would really appreciate if someone can give us tips to get the most of our visit (best time of day to avoid crowds, type of ticket to purchase, etc.) We'll spend Sunday July 12 (how are crowds on Sundays?) and our kids are 19 and 15 plus wife and me. Thanks!