I took my young kids (ages 5 and 8) to Spring Mountain so they could learn to ski, and they had a great time. Spring Mountain is only 20 minutes from King of Prussia, so it is close to anyone living in the Philadelphia area. We went on a Sunday and the lift line waits were under a minute. The staff was very friendly and the kids learned a lot in ski school. They went from never having put skis on in the morning, to going up the chair lift by the end of the day.