Challen Hill Park Outer Loop is a 1.2 mile moderately trafficked loop trail located near Riverside, California that offers the chance to see wildlife and is good for all skill levels. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail.
There isn't much to look at scenery wise here, but when you get to the top you're able to get a pretty good 360 degree view of Riverside! It can also be accessed through California Ave (good butt workout). It's a little disappointing that it literally only takes 10-15 minutes to reach the top but it's good if you're looking for a quickie. All paths are dirt, and it isn't very stroller friendly unless you walk the bottom loops. There is a parking lot on Challen Ave and a place for doggie bags/doggie water fountain. No bathrooms though! Watch out for the big ass ants, they are everywhere. Every now and then someone sees a coyote, and there are signs on each entrance to the park that warn of rattlesnakes so watch your steps.