Celebrate Trails Day (formerly Opening Day for Trails) is an annual spring celebration of America’s trails hosted on the fourth Saturday of April each year. The celebration encourages people of all ages and places to get outside and enjoy our nation’s great trails and trail systems. In fact, Chester County has an exceptional list of trail options – and while some of these trails are known to many, we’ve compiled a list of “Top 5 Best Kept Secrets” in Chester County for you to check out this Celebrate Trails Day!