Matthews Beach Park
Stay out of the Water: Matthews Beach
Do not enter the water at Matthews Beach Park.
Due to a contamination event, the water at Matthews Beach Park is closed until April 4th, 2026 at 7:30 pm.
Regular swim beach water quality sampling will resume in mid-May 2026.
King County Public Health - Swim Beaches monitors water quality at all freshwater swim beaches in King County during peak swimming season. Sign up for updates on their page.
Lifeguard services have ended at our swimming beaches until the 2026 season.
We strongly recommend swimming only under the supervision of a certified lifeguard. See all pools for indoor swimming opportunities near you.
Amenities
Picnic Sites Swimming Beaches Trails Hand Carry Boat Launches Play Area Views Grills Drinking fountains Restrooms Basketball CourtsAbout
Matthews Beach is Seattle's largest freshwater bathing beach. The park is named for pioneer John G. Matthews, who had his homestead on the site in the 1880's. The park is an ideal stopping place for bicyclers on the Burke-Gilman Tail- in fact, the outline of the original cove is suggested by the Burke-Gilman Trail, which was once the tracks of the Northern Pacific Railroad. In the 1940's, the area south of the main beach was the site of Pan American World Airways' offices, and the dock for Pan American's "Clipper Ships"- the world's first amphibious commercial air transports over the ocean. The City purchased the first ten acres of Matthews Beach in 1951. (Excerpted from Brandt Morgan's Enjoying Seattle's Parks.) 100' of sandbar shoreline north of where Thornton Creek meets Lake Washington allows for a hand carry boat launch.
Swimming Beach
See this year's schedule on the swimming beach page
Have your picnic here!
This park has reservable picnic areas. Visit our picnic reservations page for more information on how to have your event here.