Sun Valley Resort

Sun Valley Resort is perhaps the premier winter sports and ski resort in Idaho, but it's also full of fun outdoor and family-friendly activities if you're visiting Idaho in the summertime. The ski resort has a variety of blue, green, and black runs so everyone can have some fun on the slopes, regardless of level. I'd suggest taking the Challenger and Christmas lifts as they each offer a blue, green, and black options. The snowfall isn't the best in the United States but they supplement the ample natural snowfall with artificial snow so you're bound to have great conditions. Nordic and cross-country skiing are also especially popular in Sun Valley and they even have annual festivals to celebrate the sport.