You can also park at: Santa Ana River Trail - Hidden Valley Wildlife Reserve Entrance 11401 Arlington Ave, Riverside, CA 92505 https://yelp.to/qTKq/sXS5lWk2bY Or... Carlson Dog Park Mission Inn Ave & Indian Hill Rd, Riverside, CA 92501 https://yelp.to/qTKq/YXWdThn2bY
You can either park on Viceroy Ave or down the road at Norco Santa Ana River Trail.
Thanks! Your answer is awaiting moderation.