Lily Kennedy starts tipping over onto her sister May Kennedy on Winter Trails Day at Soldier Hollow in Midway on Saturday, Jan. 11, 2014. Free skis, instruction and trail passes were issued to roughly 380 people as part of a nationwide program designed for first-time cross-country skiers to help promote the sport. Each year, more than 11,000 people participate in Winter Trails Day at more than 80 resorts and Nordic centers across the country. Participants say cross-country skiing is affordable, easy to learn and provides moderate to vigorous exercise, depending on an individual's effort.