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Routes
Road cycling routes
United States
Washington
King County

Mercer Island

The best road cycling routes around Mercer Island

4.5

(460)

17,726

riders

17

rides

Road cycling around Mercer Island is characterized by its location in Lake Washington, offering a blend of urban accessibility and natural scenery. The island features rolling hills, wooded areas, and ravines, providing diverse terrain for cyclists. Routes often include scenic views of Lake Washington and connections to larger regional trails.

Best road cycling routes around Mercer Island

  • The most popular road cycling route is Lake Washington Loop, a 32.0 miles (51.5 km) trail that takes 2 hours 27 minutes…

Last updated: April 24, 2026

4.5

(32)

481

riders

#1.

Lake Washington Loop

51.5km

02:27

320m

320m

Embark on the Lake Washington Loop for a classic road cycling adventure, offering diverse scenery from bustling urban stretches to tranquil natural parks. As you pedal, you'll enjoy expansive vistas…

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Moderate

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

Moderate
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Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

Moderate
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Popular around Mercer Island

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Tips from the Community

Rossi Outdoors
July 25, 2025, Jerry Baker Memorial Velodrome

More information here: https://velodrome.org/

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Great spot for who wants to get more serious about bicycle racing.

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This spot along the Cedar River Trail is a great spot to stop and view the river or take a break just below the overpass for South Jones Road.

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This park has three-quarters of a mile of water frontage on Lake Washington, and is mostly undeveloped except for a series of trails, some of which are paved for multi-use. You have great odds of seeing wildlife near the north and south ends of the park, and the park also has swimming, boating and fishing amenities.

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The 520 Trail climbs the shallow incline up to the overpass where you cross NE 51st Street.

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Zachary
January 24, 2025, NE 51st Street Hill

The 520 Trail climbs the shallow incline up to the overpass where you cross NE 51st Street.

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AaronLavanchy
January 21, 2025, Lake Sammamish

Lake Sammamish is a seven-mile-long freshwater lake situated just east of Lake Washington. The area around the lake holds cultural significance as a gathering place for at least four Native American tribes. It is now part of a 512-acre day-use park, Lake Sammamish State Park.

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Sue
January 4, 2025, Sammamish River Trail

This trail runs along the Sammamish River from Bothell to Marymoor Park. It is paved for the entire 10.1 miles and offers extraordinary views of the river, Mt. Rainer, the Sammamish River Valley and Cascade foothills. It is a primary recreational source for walkers, hikers, joggers, skaters and cyclists.

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Frequently Asked Questions

How many road cycling routes are available around Mercer Island?

There are over 10 road cycling routes around Mercer Island, offering a variety of experiences for different skill levels. Most routes are considered moderate, with a few easier options available.

What are the difficulty levels of road cycling routes on Mercer Island?

The majority of road cycling routes around Mercer Island are rated as moderate. These routes often feature rolling hills and some elevation gains. For those seeking a more vigorous ride, routes like the Squak Mountain Loop from Mercer Island offer significant elevation changes.

Are there any easy road cycling routes suitable for beginners on Mercer Island?

Yes, while many routes are moderate, there are easier options available. The Lake Washington Loop, for example, offers a classic ride around the island with mostly rolling hills and good shoulders, making it accessible for most skill levels.

What scenic views can I expect while road cycling around Mercer Island?

Road cycling routes around Mercer Island frequently offer picturesque waterfront views of Lake Washington. On clear days, you can also catch glimpses of Mount Rainier and the Seattle skyline, especially when cycling across the I-90 Trail. Routes often navigate through wooded areas and ravines, adding to the natural beauty.

What are some notable attractions or points of interest along the road cycling routes?

Many routes pass by or near significant natural areas and parks. Luther Burbank Park, a 'crown jewel' of Mercer Island, offers nearly a mile of Lake Washington shoreline and is featured on routes like the Luther Burbank Park – Ventilation for the I-90 tunnel loop. You can also explore Matthews Beach Park or Seward Park, which are part of the broader Lake Washington area.

Where can I find parking for road cycling on Mercer Island?

Mercer Island offers various parking options, particularly near popular parks and trailheads. Luther Burbank Park and Aubrey Davis Park are common starting points with available parking. For specific parking details, it's advisable to check local Mercer Island resources.

Can I access Mercer Island's road cycling routes using public transport?

Yes, Mercer Island is well-connected by public transport, making it accessible for cyclists. The car-free I-90 Trail connects Mercer Island to Seattle and Bellevue, allowing for easy access from both cities. Public buses often have bike racks, facilitating transport to the island.

What is the best time of year to go road cycling on Mercer Island?

The best time for road cycling on Mercer Island is generally during the spring, summer, and early fall months when the weather is milder and rainfall is less frequent. These seasons offer the most comfortable conditions for enjoying the scenic views and varied terrain.

Are there any family-friendly road cycling paths on Mercer Island?

While many routes involve some elevation, the Mercer Island Loop itself is considered suitable for most skill levels, including families with older children, due to its low traffic and good shoulders. For younger riders or those looking to practice skills, the Mercer Island Bike Skills Area (BSA) in Deane's Children's Park offers a dedicated course.

What do other road cyclists enjoy most about road cycling in Mercer Island?

The komoot community highly rates road cycling around Mercer Island, with an average score of 4.6 stars from over 120 reviews. Cyclists often praise the continuous lake views, the blend of urban accessibility with natural beauty, and the diverse terrain that includes rolling hills and wooded areas.

Are there any cafes or amenities along the road cycling routes on Mercer Island?

Mercer Island has a town center with various cafes, restaurants, and shops where cyclists can refuel or take a break. Popular parks like Luther Burbank Park also offer facilities. Planning your route to pass through the town center or near these parks can provide convenient stops.

Are dogs allowed on the road cycling trails around Mercer Island?

While specific regulations can vary by park and trail, many public parks and multi-use paths on Mercer Island allow dogs on leashes. However, for road cycling routes, it's generally recommended to check the specific rules for each segment of your chosen route, especially when passing through sensitive natural areas or private property.

What is the length of the main Mercer Island Loop road cycling route?

The classic Mercer Island Loop, which circles the perimeter of the island, is approximately 15 miles long. This route can be extended by completing it twice for a roughly 30-mile ride, or by connecting to larger regional trails like the Lake Washington Loop.

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