Overview
The Green River Trail is a paved and natural-surface multi-use path that follows the Green River through the cities of Auburn, Kent, Tukwila, and into Renton in King County, Washington. The trail runs for roughly 20 miles in its more developed sections, connecting parks, open spaces, and neighborhoods along one of the region's primary lowland rivers.
The corridor offers a notably accessible outdoor experience within a heavily urbanized region, threading between industrial zones, suburban neighborhoods, and genuine riparian habitat. Cottonwood groves, willow thickets, and the river itself create a sense of separation from the surrounding cityscape that surprises many first-time visitors.
The trail is managed by a combination of King County Parks, the City of Auburn, the City of Kent, and other local jurisdictions. Users include cyclists commuting or touring, joggers, dog walkers, and families with strollers. The surface quality and connectivity vary by segment, so it is worth checking current conditions with King County Parks or the relevant city parks department before setting out.
Before You Go
Permits and Fees
As of widely available information, the Green River Trail is free and open to the public with no permit required for day use. Some connected parks may have parking fees or specific regulations — verify current details with King County Parks or the individual city's parks department before your visit.
What to Bring
- Water and snacks: amenities are sparse on many trail segments; carry what you need
- Weather-appropriate layers: western Washington weather can shift quickly, and river corridors tend to be cool and damp
- Trail map or downloaded offline route: cell coverage can be inconsistent near the river bottom
- Bike repair kit if cycling
Trail Surface and Accessibility
Much of the trail is paved and accessible to mobility devices, though some connectors and unpaved segments exist. The trail is generally flat, following the river grade, making it suitable for most fitness levels. Check with King County Parks for the most current accessibility information on specific segments.
Getting There
The Green River Trail is accessible from multiple trailheads spread across Auburn, Kent, Tukwila, and Renton. There is no single main gateway — entry points exist throughout the corridor.
By Car
Parking is available at several access points including Riverview Park (Auburn), Russell Road Park (Kent), and Van Doren's Landing Park (Kent), among others. Parking availability and any associated fees should be confirmed locally, as these can change.
By Public Transit
King County Metro and Sound Transit serve the Auburn, Kent, and Tukwila areas. The Sounder commuter rail (Auburn and Kent stations) offers a convenient car-free option from Seattle — from the stations, portions of the trail are reachable on foot or by bike. Check the Sound Transit and King County Metro websites for current schedules and fares.
By Bike
The trail connects to the regional trail network, including links toward the Interurban Trail, making car-free bicycle access feasible from parts of South King County and beyond.
Getting Around
The trail itself is linear and straightforward to navigate on foot or by bicycle. Most users travel an out-and-back route or plan point-to-point rides using transit at one end.
Bicycles are the most efficient way to cover the full length of the trail in a single outing. Pedestrians typically focus on shorter segments between specific parks or landmarks. Shared-use sections require standard trail etiquette: cyclists announce passes, yield to pedestrians, and keep speeds appropriate for conditions.
Connecting between trail segments in different cities sometimes requires brief on-road riding or walking through neighborhoods. A downloaded map or dedicated trail guide from King County Parks helps bridge these gaps.
Things to See & Do
Cycling and Running
The trail's relatively flat grade and paved surface make it popular for recreational cycling and jogging. Many commuters also use it as a practical route. Long-distance cyclists can link it with the regional Interurban Trail system for extended rides.
Wildlife Watching
The Green River corridor supports a variety of bird species, including great blue herons, kingfishers, and seasonal waterfowl. Salmon runs occur in the Green River, and fish can sometimes be observed from trail bridges and riverbanks during fall spawning season.
Connected Parks
Several parks punctuate the trail, providing rest areas, picnic facilities, and river access. Van Doren's Landing Park and Riverbend Park in Kent, and Flaming Geyser State Park further upstream (requiring additional driving), are among the recognized open spaces in or near the corridor. Facilities and hours vary — verify with the relevant parks department.
Photography
The river corridor, cottonwood canopy, and Cascade foothills backdrop offer varied photography opportunities, particularly in autumn when foliage turns and salmon are present.
Food & Drink
There are no food or beverage vendors on the trail itself. Visitors should plan to bring their own food and water for any outing.
The cities of Auburn, Kent, and Tukwila have extensive commercial areas — including grocery stores, fast food, and sit-down restaurants — within short driving or cycling distance of most trailheads. Downtown Auburn and downtown Kent both have a range of dining options worth exploring before or after a trail visit.
Carrying adequate water is particularly important on longer segments; the river water is not safe to drink without treatment.
Practical Information
Restrooms
Restrooms are available at select trailhead parks but are not uniformly distributed along the route. Confirm availability at your intended start point before departing.
Dogs
Dogs are generally permitted on the trail on leash. Verify specific rules with each city's parks department, as regulations can vary by jurisdiction.
Emergency Services
For emergencies, call 911. The trail passes through multiple city jurisdictions; dispatchers can direct appropriate agencies. Cell coverage near the river bottom can be weak in places, so note the nearest road crossings when planning longer outings.
Flooding
The Green River is subject to seasonal flooding, and trail segments can be closed during and after significant rain events. Check current trail conditions with King County Parks or the relevant city before visiting, especially November through March.
Safety
The Green River Trail passes through a mix of urban-adjacent and more secluded areas. As with any multi-use urban trail, standard precautions apply: remain aware of your surroundings, travel with a companion when possible on quieter segments, and secure valuables in your vehicle at trailheads.
Flood risk is the primary environmental hazard. The Green River watershed is actively managed, but heavy precipitation can raise river levels rapidly and inundate low-lying trail sections. Respect any posted closure signs.
Wildlife encounters are generally benign — coyotes are present in the corridor but incidents are rare. Do not feed wildlife. If cycling, a helmet is strongly recommended.
