I did about 9 miles near Huntington Beach. The good part of the trail is that long and unobstructed. You never have to cross a street. The bad part is that it is dam ugly.

We really enjoyed this trail as our first time . Very clean and comfortable one.

After riding the lower trail to the beach many times I decided to try the upper trail. I really didn’t like it. The homeless encampments and graffiti made the trail feel unsafe. I’m an adult male and I was uncomfortable, I can’t imagine being a female using this trail alone. Won’t use the upper trail again.

Nice easy trail whole family can enjoy, a couple of bumpy spots not real bad.

Upper trail is about 18 miles one way. Trail condition are good, path is well maintained. Not the most scenic, but there were zero traffic intersections to negotiate. Most of upper riverbed was dry.

these trails are actually really fun but yet very distant. i find it enjoyable to bike through these trails catching a breeze & watch bunnies or lizards come across the road every now & then. these trails can also lead to the norco powerhouse which is awesome to take pictures in & is close to the river. however, it feels a bit uncomfortable going though a plant nursery & interrupting people’s jobs. also, it does smell like horse dropping throughout the way so hopefully you don’t mind.

I'm grateful that this trail is no longer blocked by homeless and their tents. However I find it a little weird how different sections of this trail are connected and signed. There is a wooden bridge north of the 17th Street/Westminster Avenue exit. That bridge must be crossed to continue northbound, but there's no sign indicating that's where the trail continues.
Then again at Katella Avenue, there's a weird connection to the next section of trail north of there: a crudely paved section of trail that runs concurrent to Katella Avenue in East Anaheim across the street from ARTIC. The nearest sign I saw that said "Bike Route" did not point to the left where this crudely-paved connector actually is.

Quick and easy ride with my husband and 12 year old son. Got windy going back to where we parked but it was an overall great bike ride on a Friday afternoon.

My wife and I rode this trail Sunday May 18th and just loved every minute of it. We are E-bike riders and I was impressed by the whole area and vibe where this is located. The trees and shade on the path made riding very comfortable, and the homes and farms there were just full of flowers and green vegetation. To me, it was like seeing Orange Country the way it use to be in the 60's, Orange and Avocado trees everywhere! The smells of the area were overwhelmingly sweet, clear and comforting. We loved the little farms and produce markets and came home with fresh honey, oranges and lemons. One amazing home there on this trail had a cozy little nook in front of it that offered a drinking fountain for humans and dogs as well as a free library for those in need of a free book. This trail offers a easy going paved bike /walking trail for easy going travel and another bike path along the road for serious bike dudes wanting to go fast. We got lost trying to find it at first but the easyest way to go is the 91Freeway of at La Sierra go up towards the hills and you will find the (trail starts) at Victoria and La Sierra. My trip meter on my bike said we went about 20 miles total. You can park at the stores on La Sierra/Ralphs/Stater Bros and ride up to the head of the trail or some folks we met parked at a school a little ways into the trail at Hawthorne Elementary at 2700 Irving St. Riverside. Afterward we eat lunch at an amazing Greek restaurant off of La Sierra called "Greek Street", it was amazing.