Jingle Trails Challenge is at McAllister Park in central San Antonio. You'll run on smooth dirt, rocks, roots and gravel. The 10K race is on the Blue Loop for a total of 6.2 miles and the 5K is on a separate loop through McAllister. Come dressed up to celebrate the season. The first 250 who register will receive a "Jingle Trail" beanie and all finishers will receive a finisher's mug to fill with hot cocoa!