The Falls Are Nearly Dry Right Now. Go Anyway.

If you drive up Canyon Boulevard this month expecting the postcard version of Monrovia Canyon Falls, you're going to be disappointed. The 30-foot cascade that everyone photographs runs on an artesian spring, which is why it never fully stops, but hikers who've been up there in recent weeks describe a waterfall reduced to a trickle over mossy granite, the kind of flow that photographs fine but doesn't roar. Multiple trail reports note the falls can run close to dry from early fall into November, before winter rain brings it back to full volume. September is the wrong month to chase the destination.

It's the right month to chase the walk.

That distinction matters more than it sounds like it should, because Canyon Park spent years being talked about only in terms of when it would reopen, not what it's actually good for once you're inside it. The park closed after the 2020 Bobcat Fire scorched roughly 278 acres inside Monrovia's boundary, then took another hit when a December 2021 storm dumped more than five inches of rain onto the burn scar and sent debris flows through the canyon floor. It didn't fully reopen until June 27, 2025. That reopening is old news to most residents by now. What's still useful, and what most write-ups skip, is how the canyon actually works day to day once you're past the entrance gate.

The Reservation Rule Only Bites on Weekends

Here's the part that trips people up: Canyon Park requires a reservation to enter, but only on Saturdays and Sundays. Show up on a weekday afternoon and you walk in the same way you would have five years ago, no booking, no time slot, just the parking fee at the kiosk. Weekend visitors need to reserve one of three time blocks in advance through the city's online system before they arrive.

Parking itself got easier to find than it used to be. The city's capital upgrade, which broke ground in April 2024, pushed total vehicle capacity from 87 spaces to 111, including new ADA spots near the Canyon Park cabin. The fee runs five dollars on weekdays and six on weekends, and if you'd rather skip the card surcharge some kiosks charge, bring cash.

None of this is complicated once you know it. Almost nobody explains it clearly, which is exactly why it's worth spelling out here.

Three Lots, Three Very Different Hikes

The canyon has three parking areas, and which one you choose changes the hike more than most people realize before they've already parked in the wrong lot.

If your plan is genuinely just to see the falls and leave, park at the Nature Center lot and save yourself the extra mile. But if the falls are running low anyway this month, the lower lot's longer route is the better use of an hour, because it takes you past Sawpit Dam, which has its own small piece of history worth knowing. The dam's reservoir was never filled to capacity because engineers determined it wouldn't hold up in an earthquake, so in 2000 the county's Department of Public Works cut a notch into it and turned it into a permanent free-flowing spillway. That's the version you see today, water running through a deliberate gap rather than a functioning reservoir.

The canopy along the Bill Cull Trail is dense enough, alder, sycamore, oak, that even a hot September afternoon feels manageable in a way most San Gabriel foothill trails don't. That shade is arguably the better reason to be up there this time of year than the falls themselves.

Bears Are a Real Part of the Canyon, Not a Warning Sign for Effect

Multiple recent hiker accounts, not just one outlier, mention encountering bears or bobcats along the trail, close enough to notice but calm enough not to be a problem for anyone who isn't approaching wildlife or leaving food out. Dogs are welcome throughout the park but must stay leashed, both for the standard reasons and because this specific canyon sees more wildlife traffic than most people expect from a city park inside Los Angeles County.

The Race That Proves the Point

If you want the clearest evidence that this canyon's real draw is the route and not just the waterfall, look at what the city itself organizes here every fall. Registration is open right now for the 2026 Fountain to the Falls run, a 6.38-mile out-and-back that starts at the fountain in Library Park downtown and finishes at the Canyon Park waterfall before turning back. It's capped at 350 participants, registration closes September 18 at 6 p.m., and the race itself runs Saturday, September 19, starting promptly at 7 a.m. from Library Park. Pre-registration runs $50, day-of jumps to $60 if the field hasn't already filled.

Three hundred fifty people are about to run more than six miles specifically to reach a waterfall that's going to be running at its thinnest point of the year. Nobody's calling off the race because of that. The point was never really the destination. It's the climb through the foothills to get there, the same climb that makes the canyon worth a Saturday morning even when the marquee attraction isn't putting on its best show.

Come Back in Winter for the Falls. Come Now for Everything Around Them.

None of this is an argument to skip Canyon Park until the rains return. It's an argument for knowing what you're actually going up there for. Right now, in September, that's shade, a historic dam with an odd bit of engineering behind it, a reasonable chance of spotting a bobcat, and a trail system that finally reopened after five years of fire recovery and debris cleanup. The waterfall itself will be back to full strength once winter storms hit, typically sometime after November. Save the photo-worthy version of the falls for then, and use this month for the walk.

That's the kind of detail that only shows up if you've actually been paying attention to a place, not just reporting that it reopened. Monrovia residents already know their canyon reopened last year. What's more useful is knowing how to use it well this particular week, not the generic version of the story every other site already ran.

If you're weighing a move into this part of the foothills, or you already call Monrovia home and want a neighbor's read on what's changing here, Kate Amsbry works this market from the ground up, not from a database. Request your complimentary home consultation whenever you're ready to talk specifics.