We Specialize in Children's Indoor Inflatable Birthday Parties in Harford and Baltimore County Area. Hugh Arena with 9 Giant Inflatabes including a zip line! We also have a hugh variety of Outdoor Party Rentals such as: Water Slides, Bounce Party Houses, Moon Bounce Combos, Obstacle Courses, and Bouncy Castles. Jump On It is the best place for Kids Birthday Parties as well as Open Jumps! Located in Forest Hill located just outside of Bel Air MD