//-->, Copyright © FestivalNet 2020. The All Ohio Balloon Festival is celebrating 45 years in Marysville, Ohio and is a family friendly atmosphere that has something for all ages. Marysville Music Festivals. An ATM is available on-site. Things to do in Marysville, OH UNION COUNTY – (CENTRAL OH) ALL OHIO BALLOON FESTIVAL Dates: August 13-15, 2020 Location: Union County Airport, 760 Clymer Rd., Marysville allohioballoonfest.com Join Festivalnet.com now to unlock additional details,