Watch rainbow-colored balloons take flight with launches scheduled all three days (weather permitting) from the Prosser Airport. Spectators are urged to arrive around 6:15am to watch the pilots prepare the giant balloons at sunrise. A Night Glow, where the balloons will be anchored and displaying their colors, will kick off at dusk Saturday evening at Fiker Stadium. Free admission. For information, call 800-408-1517.