The Loop in Saguaro National Park East is a winding 8 mile paved loop, mostly one way, and with very little traffic. The first third of The Loop features steep but short rolling hills, followed by a sustained 4% - 8% climb, with smoother rollers in the last third of The Loop. This is some of the best real world road cycling in the Sonoran desert around Tucson, Arizona. A fee station stop at the start and a water refill at the end make Pause/Catch Up the best mode in KinoMap Trainer.