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Mercer Slough Nature Park

4.6 ★★★★★ 127 Google reviews · Running trail in Bellevue, Washington · Posted hours

Runner's snapshot

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

Confirmed from Mercer Slough Nature 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.

MixedDog-friendlyStroller / ADAHillyTrailhead parkingQuiet

Serene park with hiking trails (including kid-friendly ones) and a blueberry farm.

What runners say about Mercer Slough Nature Park

Pulled from public reviews of this trail (127 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

well-maintained 5 mentions

“Nice and clean, crosses a river for some nice views and the wooded trail itself is well maintained.”

🏃 great for running 2 mentions

“Great place for eco therapy or a jog.”

🌾 quiet & peaceful 5 mentions

“Very nice place to stop in and have just a quiet walk.”

👟 good for all levels 4 mentions

“Looking for easy trails in the Bellevue area, this is a great place to check out!”

Nice park with about 4 km of trails split into two loops. The paths are quite wet and muddy overall, so waterproof shoes are recommended. I spotted a few snakes along the way, so keep an eye out. There's plenty of parking, but the road down to the lot from the main street is very steep—drive carefully.

★★★★★ — Kelly , May 2025

A Heritage loop trail of Mercer Slough Nature Park is a must do trail of Bellevue.

★★★★☆ — Sajal , Sep 2025

Looking for easy trails in the Bellevue area, this is a great place to check out! It loops around a blueberry farm and next to some water. A lovely place to walk!

★★★★★ — Katherine , Dec 2022

The trail goes past a bunch of buildings which is great for those working in them but not a full nature experience. Though thanks to that there are several nice places to sit

★★★★☆ — Olga , Jul 2024

Excerpts from public Google reviews. Read all 127 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.

🤫 Quiet / uncrowded 5 mentions

“Very nice place to stop in and have just a quiet walk.”

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🌲 Natural surface / singletrack 4 mentions

“The paths are quite wet and muddy overall, so waterproof shoes are recommended.”

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⛰️ Hills / elevation 3 mentions

“There's plenty of parking, but the road down to the lot from the main street is very steep—drive carefully.”

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🅿️ Trailhead parking

“There's plenty of parking, but the road down to the lot from the main street is very steep—drive carefully.”

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🪵 Boardwalk 2 mentions

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🐕 Dog-friendly

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Stroller / ADA accessible

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Plan your run at Mercer Slough Nature Park

The practical stuff

  • AccessPosted hours — posted hours below; park gates sometimes close earlier than the listing says
  • SurfaceMixed — more than one surface along the route, so check the segment you plan to run
  • 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.
  • At the trailheadparking — reported by runners
  • DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
  • Stroller / wheelchairReported as smooth and step-free enough for a running stroller or a chair.
  • Websitebellevuewa.gov
  • Phone(425) 452-2565
  • Social Instagram · Facebook

Hours

Monday 8 AM–4 PM
Tuesday 8 AM–4 PM
Wednesday 8 AM–4 PM
Thursday 8 AM–4 PM
Friday 8 AM–4 PM
Saturday 8 AM–4 PM
Sunday 8 AM–4 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 Mercer Slough Nature Park

2101 118th Ave SE, Bellevue, WA 98005

Get directions

Running trails near Bellevue

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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Wilburton Park trail, Bellevue Botanical Gardens trailhead

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Wilburton Hill Park

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80 miScenicDog-friendly

Wooded park with picnic areas, a soccer field & 2 baseball fields, a playground & trails.

1.0 miles away

Richard's Valley Loop Trail

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Loop

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Kelsey Creek Park

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ScenicDog-friendly

This 150-acre park with a playground & trails also features a farm with programs, tours & animals.

1.2 miles away

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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.