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Routes
Gravel rides
United States
Washington
King County

Mercer Island

The best gravel rides around Mercer Island

4.8

(9)

175

riders

6

rides

Gravel biking around Mercer Island offers diverse terrain within a unique island setting in Lake Washington. The region features extensive forested areas, including Pioneer Park with its unpaved trails and varied habitats, alongside scenic waterfronts and wetlands. The landscape includes gentle inclines, steep-sloped ravines, and views of Lake Washington, providing mixed-surface riding opportunities.

Best gravel bike trails around Mercer Island

  • The most popular gravel bike trail is Cross Kirkland Corridor – Sammamish River Trail loop from Kirkland, a 39.7…

Last updated: May 31, 2026

4.7

(3)

66

riders

#1.

Cross Kirkland Corridor – Sammamish River Valley loop from Kirkland

63.8km

03:59

660m

660m

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

5.0

(2)

42

riders

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

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Popular around Mercer Island

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Tips from the Community

Filip N
September 6, 2025, Evergreen Point Floating Bridge (520 Bridge)

can be quite windy

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Tyler Sanders
February 6, 2025, Eastrail

This 42-mile trail is wide and flat, offering views of the river through lush greenery throughout. It is designed to connect different cities, providing a non-motorized trail for recreation and transportation.

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This crossing is currently in poor condition, with narrow sidewalks and challenging access. Avoid crossing at 124th. Instead, dismount, check for traffic, and quickly walk your bike across. The current setup is not bike-friendly, so extra caution is necessary.

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This small park sits right on top of the bridge, with a privillege view of the river, the bridge and the mountains in the background. Worth taking a break to sit in one of the benches just to enjoy the view.

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This bridge holds the record as the world's longest floating bridge at 7,710 feet and the widest at 116 feet. The trail, a well-paved path, provides breathtaking panoramic views of Lake Washington.

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Kirkland Rotary Central Station is a restored former railroad station along the Cross Kirkland Corridor, preserving its historic charm while serving as a community hub. The station features interpretive signs highlighting Kirkland's rail history, making it a great stop for history buffs or anyone exploring the trail. Its rustic design and surrounding greenery create a nostalgic yet vibrant atmosphere, perfect for a quick rest or photo opportunity.

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Ahh, this thing. Yeah, it's terrible. Although it is scheduled to be completely re-done in 2025 - a proper crossing with lights and everything. But until then, the best way across is to dismount, look both ways, run the bike across, and remount. Do NOT go to 124th to cross. Ridiculous car-centric planners had no clue.

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the East rail directs you to cross at the crosswalk over on 124th. the access is horrible there and the sidewalks too narrow. the worst and most dangerous part of trip

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Frequently Asked Questions

How many gravel bike trails are available around Mercer Island?

Komoot features 9 gravel bike routes around Mercer Island. These routes offer a mix of moderate and difficult options, catering to various skill levels.

What kind of terrain can I expect on Mercer Island gravel trails?

Gravel biking around Mercer Island offers diverse terrain. You'll find unpaved paths within parks like Pioneer Park, alongside winding residential roads that provide mixed-surface riding opportunities. The landscape includes gentle inclines, steep-sloped ravines, and scenic views of Lake Washington.

Are there any family-friendly gravel biking options on Mercer Island?

While many routes around Mercer Island feature varied terrain and some significant climbs, the island's extensive trail networks offer paths suitable for different ability levels. For easier, family-friendly options, consider exploring the less challenging sections within parks, though specific dedicated family-friendly gravel routes are not explicitly listed. The 1.5-mile loop trail at Luther Burbank Park, while not strictly gravel, offers a scenic and accessible option.

Can I bring my dog on Mercer Island gravel bike trails?

Mercer Island parks generally welcome dogs, often requiring them to be on a leash. For specific regulations regarding dogs on trails, especially within Pioneer Park's unpaved sections, it's best to check the official Mercer Island Parks and Recreation website for the most current guidelines.

What are some scenic viewpoints or natural features along the gravel routes?

Many routes offer glimpses of Lake Washington and traverse beautiful natural areas. Parks like Luther Burbank Park provide three-quarters of a mile of Lake Washington waterfront, meadows, and forested areas. Pioneer Park features diverse habitats, including mixed conifer-deciduous forests and ravine views. You can also find highlights like Seward Park and Lake Union Park nearby, which offer stunning lake views and natural settings.

Are there any waterfalls near the gravel biking routes?

While Mercer Island itself is more known for its lake views and forested parks, there are waterfalls in the broader region. Notable waterfalls you might explore include Coal Creek Falls and Waterfall Garden Park, which are accessible from routes in the surrounding areas.

Where can I find unpaved paths suitable for gravel biking on Mercer Island?

Pioneer Park is a key area for unpaved paths, offering 6.6 miles of trails through forested areas. While some sections are geared towards equestrians, the natural, unpaved surfaces could be appealing for gravel biking. The island's extensive network of 450 acres of open space also contains varied unpaved trails. For more details on specific trails, you can visit the official Mercer Island Parks and Recreation website: mercerisland.gov/parksrec/page/trails.

Are there any loop trails for gravel biking around Mercer Island?

Yes, several routes are designed as loops. For example, the 520 Bridge View Park loop from Spring District is a moderate 35.8-mile path, and the Sammamish River Trail – Cross Kirkland Corridor loop from Bellevue Downtown offers a 22.5-mile ride through river corridors and urban greenways.

What is the best time of year to go gravel biking on Mercer Island?

Mercer Island's climate makes it suitable for gravel biking through much of the year. Spring and fall offer pleasant temperatures and beautiful foliage. Summers are generally warm and dry, ideal for long rides. Winters can be wet, so be prepared for potentially muddy conditions on unpaved trails, though paved sections remain accessible.

Is parking available near the gravel trails on Mercer Island?

Yes, parking is generally available at various parks and trailheads across Mercer Island. For instance, parks like Pioneer Park and Luther Burbank Park offer parking facilities. It's advisable to check specific park websites for detailed parking information before your ride.

How accessible are the trails by public transport?

Mercer Island is connected to Seattle and Bellevue by public transport, primarily via bus routes that utilize the I-90 corridor. While the I-90 trail itself is paved, public transport can get you to the island, from where you can access various parks and residential roads that offer gravel biking opportunities. Check local transit schedules for the most convenient stops near your desired starting point.

What do other gravel bikers say about the trails here?

The gravel biking routes around Mercer Island are highly rated by the komoot community, with an average score of 4.8 stars from over 10 reviews. Reviewers often praise the diverse terrain, scenic lake views, and the mix of forested park trails and mixed-surface residential roads that define the riding experience.

Are there any challenging routes for experienced gravel bikers?

Yes, Mercer Island offers challenging routes for experienced gravel bikers. The Cross Kirkland Corridor – Sammamish River Trail loop from Kirkland is a difficult 39.7-mile trail with significant elevation gain. Another demanding option is the 520 Bridge View Park – East Channel Bridge loop from Mount Baker, which covers 89.3 miles with substantial climbing.

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