You only have to go as far as Lincoln Park to learn how to fly on the trapeze. The Flying Gaonas Gym sets up shop outdoors at 3350 N. Recreation Dr., July 24-Aug. 29, and classes are available at all levels. Kids and adults can even try a single swing for $10
$40-$60 single classes, $130-$210 four sessions, $240-$360 eight classes; 312-742-8259;
http://www.flyinggaonasgym.com