Treehill, South Loop, and Midway Loop

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San Joaquin Marsh Reserve

Treehill, South Loop, and Midway Loop is a 2.7 mile heavily trafficked loop trail located near Irvine, California that features beautiful wild flowers and is good for all skill levels. The trail is primarily used for hiking, walking, trail running, and bird watching and is accessible year-round.

Length2.7 miElevation gain55 ftRoute typeLoop
Kid friendlyHikingWalkingBird watchingRunningViewsWildflowersWildlifeNo dogs
Waypoints (0)
Weather
UV Index
Daylight
Reviews (370)
Photos (342)
Activities (363)
Completed (595)
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Dominic Wrtaza
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Hiking

Easy and lots of nature

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Matt Marsh
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Walking

Dang those bugs in the AM were hardcore. Flying directly into my eyeballs like kamikazes. Its better during the day - but around dusk and dawn, bring your fishnet hat

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Lauri Sachs
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Hiking

Nice, easy flat trail. Lots of birds, bird watchers and photographers. Well placed restrooms. Saw a coyote on 4/12.

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Nick Sachs
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Hiking

Nice easy loop!

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Michael Adrian Rubio
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Hiking
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Rose Castelan
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Hiking
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Candice Simmons
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Hiking

Hidden gem!

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Molly Robison
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HikingGreat!

Loved this trail! Didn’t think I would, because it appears to be between buildings but we saw so many birds (cranes?) and ducks. Really enjoyed it. Very flat and easy but with great views. Free parking, but it’s very limited. We went at 8am on a Friday morning and it was fine, but not sure if there would be a spot open on a weekend morning.

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Sebastien Aknouche
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Paddle sports

Nice walk but very few birds

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J Alvarez
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Hiking

Nice walk.

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Carter Axelrod
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Hiking

It’s a nice walk, really easy.

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Zachary Mainwaring
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Hiking

Good stuff!

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Rahul Shukla
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Hiking

Great, relaxing trail, with many different kinds of birds!

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Britt-Marie Trace
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Hiking

Definitely urban. Great trails, but you do hear traffic and airplane noise. Lots of twists and turns, easy to get turned around, but enjoyed this hike!

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Richard Palmer
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Hiking
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Kasey Fletcher
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Hiking

Nice little slice of calm tucked away. Mostly flat with plenty of spurs, you could walk this 10 times and not take the same route. Lots of opportunities to see wildlife.

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salina sarah
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WalkingGreat!

Easy terrain, exotic birds and plants along trail. Various trail options all leading to different marshes and ponds. Kid friendly. Lots of shade throughout.

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MARI Aura
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Hiking

Easy hike! My favorite hike to do in IRVINE! Kid friendly!

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Christi Van Buskirk
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Hiking

Nice easy hike with some calming water views

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Tina Le
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WalkingGreat!

Very easy trail and perfect to bring children. Not much elevation but some scenic marsh locations. Check it out for a relaxing walk or a quick jog!

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Blair Du
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HikingGreat!

It’s good for a relaxing walk, pretty flat and has some shade. Lots of forks, basically walk by the ponds. Can see many birds.

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Alondra Rodriguez
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Hiking

It was a simple walk I would give it 5 but there’s a lot of noise pollution from nearby cars. People where courteous and wearing masks when you passed by them.

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jody terry
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Hiking
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Andrew Han
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Hiking
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Jamie Barnett
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Hiking

Easy trail for the kids. Lots to see including a variety of birds and plants. Many trail options available. Not too crowded.

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Scott Douglas
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Walking
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Mychele Roberts
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Hiking
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Vincent Li
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Hiking

Not a bad rest day walk. Mostly flat

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David Suryoutomo
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HikingGreat!
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Adrian Tirado
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Hiking

nice short trail

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