This was a spur of the moment day trip to Anza Borrego Desert State Park. The trail is unmarked, but can be found with help from the link below. Once you make your way into the canyon the trail goes through various dry waterfalls which is a blast for the kids to climb. Being in a canyon there is also lots of shade from the canyon walls. The boulders and rock walls along the trail are striking with streaks of color and movement through out. Though it can be a little confusing to find, it is well worth the effort.
for trailhead details visit: https://www.hikespeak.com/trails/rainbow-canyon-trail-anza-borrego-desert/