Magnuson Park Off Leash Dog Beach
Fenced lake-swim corridor regulars call cleaner than Marymoor
About this park
The Magnuson Park Off-Leash Dog Beach offers direct access to Lake Washington for swimming, with a trail network, open play fields, and a well-fenced corridor leading from the main off-leash area down to the water. Multiple reviewers call it their all-time favorite Seattle dog park specifically for the clean lake swimming (cleaner than Marymoor, per regulars). A covered area with water station greets you at the entrance, and hoses are available for post-swim rinse-offs.
Amenities
What visitors say
Synthesized from 259 Google reviewsSwimmers rave about the clean Lake Washington access, repeatedly called their favorite in the region and a step up from Marymoor. The huge play field, multiple walking paths, rinse hoses, and secure fencing from entrance to water get constant praise.
A destination park that pulls dog owners from across the region, including commuters who drive past closer parks to get here. The crowd is big but largely attentive, with a longtime regular culture around the lake-swim ritual.
Best for
Before you go
On warm days, bring organic dog shampoo for a quick rinse in the kiddie pool on your way out; it keeps lake residue out of your car. The park can get very busy; dogs should be comfortable around large groups. Check for ticks after lake visits, particularly in summer.