First held in 1975, the All Ohio Balloon Fest is one one the longest-running events of its kind in the history of the United States. Each August, over 30,000 visitors of all ages gather at the Union County Airport to enjoy food and merchandise vendors, musical entertainment, children's activities, helicopter, airplane and balloon rides, and sky jumping in addition to a wide variety of traditional and special shaped hot air balloons. Balloon flights and balloon glows are daily highlights you won't want to miss. A non-profit event, all proceeds from the fest are donated to United Way of Union County.