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Marna O'Brien Park

4.6 ★★★★★ 343 Google reviews · Running trail in Wildomar, California · Posted hours

Runner's snapshot

Surface
Not reported
Distance
Not reported
Shape
Not reported
Shade
Not reported
Access
Posted hours

Confirmed from Marna O'Brien Park's own listing, the park or land manager's website, and runner reviews. Blank cells mean we could not verify that fact — we would rather say "not reported" than invent one. There is no Easy / Moderate / Hard rating on this page on purpose: a one-word difficulty score tells you nothing about whether a trail suits your run. Surface, distance, shade and hours do.

Lit at nightRestroomsWaterTrailhead parking

What runners say about Marna O'Brien Park

Pulled from public reviews of this trail (343 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

well-maintained 7 mentions

“This park is clean open and has everything a park should have, including bathrooms.”

👟 good for all levels 2 mentions

“Marna O'Brien Park is a fun, family-friendly ball park with a cute playground and concessions stand.”

I love celebrating Wildomar's anniversary. Marna O'Brien Park is a fun, family-friendly ball park with a cute playground and concessions stand. It is also a nice place to walk your pup.

★★★★★ — Deanna , Jul 2023

This is a good park to take the family and family dog. The trail around the park is good for walking or running and the baseball fields, when not in use by local leagues, are in good condition.

★★★★☆ — Christopher , Feb 2017

It was great fun. The people running the event were great with the children. They kept them busy so they wouldn't be bored. To bad the mariachi didn't show up it was fine without them I just hope there wasn't any money was invested

★★★★★ — Hope , Sep 2018

My kids had a blast, and it definitely helps the park has shade covering.

★★★★★ — Renee , Jun 2025

Excerpts from public Google reviews. Read all 343 reviews →

Trail conditions & character

What this trail is actually like underfoot and overhead, taken from its own listing and from reviews. Each one links to every other trail with the same character. Busy or quiet is reported as a plain fact, not a plus or a minus — a runner heading out alone at dawn often wants company on the path, and someone running intervals wants an empty one.

🚻 Restrooms 3 mentions

“Additionally, the restrooms, although very nice, have very short stalls, probably about 5'2" tall; I've never felt better about being short.”

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🅿️ Trailhead parking 3 mentions

“Depending on the time parking lot can get full but a nice little spot”

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🚰 Water fountains

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💡 Lit for night running

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Plan your run at Marna O'Brien Park

The practical stuff

  • AccessPosted hours — posted hours below; park gates sometimes close earlier than the listing says
  • DistanceNot reported. Trail systems often quote total path mileage rather than a single loop, so measure the route you actually want before you drive out.
  • ShadeNot reported. Assume some of it is exposed and carry water in summer.
  • LightingRunners report lights on the path — useful for pre-dawn and after-work miles. Lighting and opening hours are separate things, so check both.
  • At the trailheadparking, restrooms, water — reported by runners
  • Websitewildomar.gov
  • Phone(951) 677-7751

Hours

Monday 6 AM–8 PM
Tuesday 6 AM–8 PM
Wednesday 6 AM–8 PM
Thursday 6 AM–8 PM
Friday 6 AM–8 PM
Saturday 6 AM–8 PM
Sunday 6 AM–8 PM

Posted hours for the park or trailhead. Gates and parking lots often close earlier than the trail itself, and seasonal hours change — worth a check before a pre-dawn or after-dark run.

Where to find Marna O'Brien Park

20505 Palomar St, Wildomar, CA 92595

Get directions

Running trails near Wildomar

Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.

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Recreational space featuring a play structure, swings and picnic areas.

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Lakepoint Park

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Nearby towns

Listing verified July 2026 from public records, the trail's own website and runner reviews. Trail conditions change — paths flood, gates close at dusk, and shaded woods stay muddy for days after rain. Something out of date? Report a correction. Manage this trail? Send us the details — it is free.