It was windy and chilly, but the parade marched on. La Fiesta de los Vaqueros Tucson Rodeo Parade is touted as the world's longest non-motorized parade. It began in 1925 and features more than 200 horse-drawn floats along the 1 1/2-mile route that goes south on Park Avenue from Ajo Way, then turns west at Irvington Road to the rodeo grounds.