The Colorado River Crossing Hot Air Balloon Festival - presented by the Caballeros de Yuma - is one of Yuma, Arizona's premier fall events. The festival attracts some of the most colorful and unique balloons from the West and Southwest. Staged over two days in November, with mass ascensions on Saturday and Sunday mornings, the festival uses the Colorado River and the Sonoran Desert as its backdrop. The highlight is the Desert Balloon Glow that takes place on Saturday night tethered balloons fill the baseball field and with their burners firing at full blast, the balloons to glow brightly in the dark desert sky. The entire pageant is set to music.