Marymoor Off-Leash Dog Park gives dogs about 40 acres of meadow, woodland paths and river access inside King County’s Marymoor Park. The large, mostly open dog area rewards reliable recall and offers far more room to explore than a typical fenced neighborhood dog park.
Plan your visit
- Address: 6046 West Lake Sammamish Parkway Northeast, Redmond, WA 98052.
- Hours: The off-leash area is open from 8 a.m. to dusk.
- Dog area: About 40 acres with open meadow, wooded paths and access to the Sammamish Slough.
- Parking: King County charges $1 per vehicle for daily parking. ParkMobile adds a service fee, and a Discover Pass is not valid here.
- Boundary: Portions of this expansive area are not fenced. Dogs need dependable voice control.
- Water: The river is a natural swimming area with changing depth, current and bank conditions. Bring fresh drinking water.
Find the dog park entrance
Get directions to Marymoor Off-Leash Dog Park. Enter Marymoor Park from West Lake Sammamish Parkway Northeast, follow signs for the off-leash area and use a designated parking lot. Keep your dog leashed in the parking area and until you enter the signed off-leash boundary.
Explore the open space and river
Meadow paths provide room for long walks and running, while wooded sections offer a change of pace. The Sammamish Slough is popular with dogs that enjoy swimming. Watch river conditions, keep close control near the banks and do not assume every dog can manage the water-access steps or current.
This is one shared off-leash landscape rather than separate small- and large-dog enclosures. Choose quieter times or another park if your dog needs a fully fenced, size-separated setting.
Rules before you enter
Keep dogs leashed outside the marked off-leash area, including in parking lots. Inside the dog area, dogs must remain under voice control. Stay with your dog, carry a leash and clean up waste. Professional dog walkers need the required King County permit.
Review current notices, parking details and the complete rules on the official Marymoor off-leash area page before leaving home.
What other park visitors say
Visitors often praise the unusually large meadow, walking trails, wooded stretches and river access. Many describe it as a destination where dogs can run, swim and explore, and regulars appreciate the friendly community and the amount of space available even when several groups are present.
Common cautions focus on the open boundaries and the need for strong recall. Visitors also mention busy weekends, muddy river edges, crowded dog interactions and the small parking charge. Owners of small, older or less mobile dogs may want to assess the river entry and activity level before committing to a full loop.
More options and updates
Compare other Redmond dog parks or browse the wider Washington dog park directory. Last researched September 4, 2026. Check the official page for closures, river conditions, event impacts and changed parking information before travel.