2018-09-07 Harrison Hot Air Balloon Festival Harrison Hot Air Balloon Festival September 7, 2018 @ 9:00 am - September 8, 2018 @ 2:00 pm Harrison Hot Air Balloon Festival Boone County Airport (KHRO) Hot Air Balloon Festival weekend with an Aviation Day Fly-in Saturday 9:00 – 2:00. Safety Seminar @ 12:30; More details - https://www.facebook.com/EAAchapter1459/