All cars, take the unmarked park road (West) close to mile 21.5.
Hiking in Cool Canyon, a more narrow canyon, that gets plenty of shade.
The canyon is filled with sand and there are numerous dry falls.
Most of them are slightly angled and easy to get up. Further on and in the return canyon the falls are a bit steeper.
But never difficult and most of the time there is an easy way around them.
On the way up keep mostly right in the forks and as the canyon ends, turn south and try to stay mostly level. Cross a canyon and go down into the return canyon.
The first part has some boulders in it.