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Routes
Hiking trails & Routes
United States
Washington
King County
Bellevue

Lake to Lake Trail

Easy

4.9

(9657)

15,458

hikers

Lake to Lake Trail

01:15

4.85km

20m

Hiking

Hike the easy 3.0 miles (4.9 km) Lake to Lake Trail in Mercer Slough Nature Park, exploring diverse wetlands and forests.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

976 m

Mercer Slough Nature Park

Highlight • Trail

Mercer Slough has a great mix of soft trails, paved sections, and boardwalk over the wetlands. Add in the numerous interpretive signs and the blueberry farm and you'll have plenty to see along the way.

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B

4.85 km

End point

Parking

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Way Types & Surfaces

Way Types

2.46 km

1.39 km

830 m

< 100 m

< 100 m

Surfaces

2.30 km

1.76 km

289 m

209 m

168 m

122 m

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Elevation

Elevation

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Weather

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Today

Tuesday 2 June

29°C

12°C

0 %

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Max wind speed: 12.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Lake to Lake Trail?

The Lake to Lake Trail is accessible from multiple city parks, offering various parking options. Good starting points with parking include Mercer Slough Nature Park, Kelsey Creek Park, Wilburton Hill Park, and the Bellevue Botanical Garden. You can choose the park closest to the section you wish to explore.

Is the Lake to Lake Trail dog-friendly?

Yes, the trail is generally dog-friendly. However, specific rules regarding leashing may vary depending on the park section you are in. Always keep your dog on a leash and clean up after them to ensure a pleasant experience for all trail users and to protect local wildlife.

What is the best time of year to hike this trail?

The Lake to Lake Trail is suitable for year-round day hiking. Each season offers a unique experience, from seasonal blooms in spring and summer to vibrant foliage in autumn. Winter hiking is also possible, though conditions may be wetter.

Do I need a permit or pay an entrance fee for the Lake to Lake Trail?

No, you do not need a permit or to pay an entrance fee to access the Lake to Lake Trail itself. It is a public trail connecting various city parks in Bellevue. However, always check specific park regulations if you plan to use facilities within individual parks.

What are the specific regulations for Mercer Slough Nature Park?

Mercer Slough Nature Park, a key highlight along the trail, is a protected wetland area. While specific regulations can be found on the Bellevue city website (bellevuewa.gov), general rules include staying on marked trails, no littering, and respecting wildlife. Dogs are typically allowed on leash. There are no entrance fees for the park.

What is the terrain like on the Lake to Lake Trail?

The trail offers a varied terrain. Within parks, you'll find natural trails, while sections connecting parks often follow sidewalks and asphalt pathways. You'll traverse boggy wetlands, towering forests, and historic farms, providing a mix of surfaces suitable for walking and trail running.

What kind of scenery and wildlife can I expect along the route?

You can expect diverse scenery, including waterfalls, creeks, and various plant life like trillium and seasonal blooms. Wildlife sightings are common; look for Great Blue Herons in Mercer Slough Nature Park, salmon in Kelsey Creek, and deer in Weowna Park.

How difficult is the Lake to Lake Trail?

The Lake to Lake Trail is generally considered easy. It has a modest elevation gain of approximately 500 feet over its 10-mile length, making it accessible for most hikers, runners, and urban walkers. Its multiple access points allow you to customize the length of your outing.

Does the trail intersect other well-known paths?

Yes, the route integrates with and passes through sections of other paths. Notable intersecting trails include the Lake Washington Loop, Bellefields Loop Trail, and the Heritage Trail.

Are there any loop options or popular sections for shorter hikes?

While the full Lake to Lake Trail connects Lake Sammamish to Lake Washington, its integration with numerous city parks allows for many shorter loop options or out-and-back sections. Popular choices include exploring the trails within Mercer Slough Nature Park or combining sections with the Bellefields Loop Trail for a varied experience.

Are there facilities like restrooms or water available along the trail?

As the trail passes through nine city parks, you will find restrooms and water fountains available at various points within these parks. It's advisable to carry your own water, especially during warmer months, but facilities are generally accessible at park entrances or visitor centers.

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