Run as many kilometers as you wish on a circuit along the Prater Hauptallee. Expect "Clowns, Clowns, Clowns as far as the eye can see!", colorful clown acts on stage, and fun hands-on stations. You'll receive a free red foam nose, and original costumes are encouraged to make the Rote Nasen Lauf Wien extra cheerful. Your entry helps support the work of ROTE NASEN, letting you donate a smile. All are welcome, from hobby athletes to pros, or even in a stroller or on a unicycle.