Seattle Parks and Recreation has opened the gates for vendors hoping to snag a spot at the 2026 Big Day of Play, the city’s free, daylong recreation festival returning this August to Rainier Playfield and the Mt. Baker Rowing & Sailing Center. The call for food trucks, community groups and nonprofits went out in a May 4 Facebook post from the department, and organizers are already reminding applicants that spots tend to disappear fast. The one day event typically blends a Fun Run, water activities, sports clinics, live performances and a busy vendor fair that pulls several thousand neighbors into the Rainier Valley.
Vendors, Start Your Applications
According to Big Day of Play, vendor applications for the 2026 event are officially open, and organizers recommend getting in early because space is limited. Seattle Parks and Recreation has also pushed the vendor call on Facebook. From the Vendor Fair page, would‑be participants can click through to an "Apply Now" form that serves both program vendors and food trucks. Questions can be directed to the planning committee using the contact information listed on the site.
Three Sites, One Big Neighborhood Party
The action on land will center on Rainier Playfield, while water programming takes place at the Mt. Baker Rowing & Sailing Center. The Fun Run starts at Lakewood Playground, with shuttles running between the event sites to keep people moving without the parking headache. A Seattle Parks and Recreation sponsorship packet notes that past editions have drawn nearly 5,000 attendees and highlights a mix of sports clinics, a vendor resource fair and live entertainment. Organizers present the festival under the Get Moving initiative, which is designed to connect neighborhoods with free recreation and wellness resources.
What Organizers Say They Are Building
As Seattle Parks' Parkways blog has reported, Big Day of Play is framed by the Get Moving Initiative and focuses on accessibility, culturally relevant programming and partnerships with local sports and transit organizations. Past coverage shows the festival is a regular launchpad for community groups and small food vendors that want to get in front of a broad, family friendly crowd without losing the neighborhood feel.
How To Get In Before Spots Vanish
Interested vendors are directed to start at the Big Day of Play vendor page and use the linked application form. Organizers suggest submitting materials as soon as possible to lock in a space for the mid August event. For questions, vendors can email the planning committee at [email protected].
