We did the Northern section of the trail. Started in San Bernardino off of Waterman Ave and rode to the end of trail in Jurupa Valley. The trail is very clean, there was a good amount of other riders and runners. The bad thing is that you are under the sun most of the ride. There were a few homeless people but we did not feel unsafe. Total miles from San Bernardino to Jurupa Valley and back was just shy of 40miles.

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.