Top 5 Biking Trails in Seattle Southside

Last Updated: August 17, 2026

Some of the best biking trails in Seattle are in Seattle Southside! You'll find plenty of opportunities to get out and get active weaving through urban landscapes.

Here are a few of our picks for the top biking trails in Seattle Southside.

Des Moines Creek Trail

Interurban Trail

The Green River Trail

The Lake to Sound Trail

North SeaTac Park

Des Moines Creek Trail

The Des Moines Creek Trail is a scenic, 2-mile paved route that follows Des Moines Creek through a forested greenbelt, connecting the area near Seattle-Tacoma International Airport to the city's waterfront. You can begin your ride at Des Moines Beach Park on Puget Sound, or at the trailhead near the Angle Lake Link light rail station, or even farther north along the Lake to Sound Trail near the north end of SEA Airport. A recently completed 1.5-mile extension along Des Moines Memorial Drive links the airport section to the southern end of the Lake to Sound Trail, creating an even longer, continuous ride. Starting near Angle Lake (the northern trailhead) means enjoying a mostly downhill cruise to the water, ending at Des Moines Beach Park with its marina and sweeping Puget Sound views.

INTERURBAN TRAIL

Stretching 14 paved miles through Tukwila, Kent, Auburn, Algona, and Pacific, the Interurban Trail is a great option for everything from a leisurely ride to a serious workout. The route passes through a mix of urban neighborhoods, green spaces, and corridors tracing the historic Interurban Rail Line. From Tukwila, you can head north toward downtown Seattle or ride south along the Green River. You don't have to tackle the entire trail, though—there are plenty of convenient access points, making it easy to ride as much or as little as you'd like. If you get hungry on the way, there are also plenty of restaurants in Tukwila's retail and shopping district (known as the Southcenter area).

The Green River Trail

The Green River Trail is 19 miles long and starts at Cecil Moses Park in Tukwila, winding all the way down to the North Green River Park in Kent. Along the way, you'll enjoy excellent views of the Green River, industrial areas, and local parks. The trail intersects the northern end of the Interurban Trail at Foster Park. With its mostly flat route and scenic landscape, this trail is a very popular choice for cyclists. As you ride the Green River Trail through Tukwila, you'll pass Fort Dent Park, a 54-acre community park with paved pathways, wetlands, athletic fields, and the Fort Dent Bridge overlooking the Green River. It's a convenient place to take a break, refill your water bottle, or enjoy a picnic before continuing your ride.

Read our detailed guide to cycling the Green River-Interurban Trail Loop for more information.

The Lake to Sound Trail

When complete, the Lake to Sound Trail will stretch 16 miles from the southern shore of Lake Washington in Renton to the Des Moines waterfront on Puget Sound. While the full route is still under development, cyclists can already enjoy several connected sections, including the newly completed Segment C between SeaTac and Burien. This 2.2-mile section begins where the Lake to Sound Trail meets the Des Moines Creek Trail at South 200th Street and follows the SR 509 corridor north to South Normandy Road in Burien. Completed in 2025, the paved route features elevated boardwalks through wetlands, improved crossings, and gentle grades, closing a long-standing gap in the regional trail network and creating more than 7 continuous miles of the Lake to Sound Trail.

Watch this video by a local cyclist to get a better sense of the route.

Pictured: The Trailhead of the Des Moines Creek Trail

Credit: Sara Anfuso

North SeaTac Park

Surrounded by trees and greenery, North SeaTac Park is an urban oasis for bike riders. Located beneath the flight path of Seattle-Tacoma International Airport, the park is home to the renowned SeaTac BMX track, where riders of all skill levels can test their speed and technique on a professionally designed course. Beyond the track, you'll find paved pathways winding through the park, along with wooded trails and open green space that make it a great place to spend an afternoon outdoors.

Pictured: North SeaTac Park

Even More Cycling

Despite our rainy weather and crazy hills, Seattle is a biking town! Whether you want a solo adventure or a good trail to take the family, we have something for you.

The 14-mile Burke-Gilman Trail is popular with Seattle cyclists. The trail starts in Ballard and ends north in Kenmore. Once you reach the end, keep going – the Sammamish River Trail continues another 10 miles into Redmond.
Each year, the Lake Chelan community hosts Cycle de Vine, a 35-mile ride that passes through some of Chelan Valley’s preeminent wineries.
For views of Lake Washington, there is no better ride than along Lake Washington Boulevard. The eight-mile ride takes cyclists through the Washington Park Arboretum and along the shores of Lake Washington.

Want to take a guided bicycle tour with a pro? Here are a few companies to check out:

Seattle Mountain Bike Tours offers a number of guided tours throughout the region's forests, some of which utilize e-bikes.
Seattle Bicycle Tours is a well-established tour company that explores various neighborhoods in Seattle.