The Annual Heart of Cool Trail Run is scheduled for October 1st (the first Sunday in October). Proceeds benefit Northside School and Camp Taylor, which provides programs for young people and families with heart disease. There is a 4.5-hour time limit for the Half Marathon, but entries for the 5k and 10k have no limit. The Half Marathon incorporates a 1000-foot climb in .9 miles (raining Hill) into its 10-mile loop, so come prepared for a climb. You’ll find all the details at heartofcooltrailrun.com but register for the Run at ultrasignup.com.