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Seattle’s Big Day of Play Returns on August 16, 2025! 

Join the fun at Big Day of Play 2025, returning on Saturday, August 16th from 12-5pm at Rainier Playfield and Mt. Baker Rowing & Sailing Center! Big Day of Play is not just an event; it’s a celebration of diversity, community, and connection! It’s a day where neighbors, communities, and families come together to learn, play, build relationships, access resources, and be active—all while having fun and celebrating our shared humanity.  

Presented by Seattle Parks & Recreation’s Get Moving Initiative in partnership with King County Metro, Big Day of Play offers a full day of FREE exciting activities for all ages and abilities, at two locations: Rainier Playfield and Mt. Baker Rowing & Sailing Center.  

Big Day of Play is a reminder that recreation is for everyone and a day to truly PLAY YOUR WAY! We’re thrilled to bring our partners, local delicious food vendors, and community back together again for this annual, joyous occasion and look forward to seeing you there! 

Event Highlights Include: 

  • Community Resource Fair featuring over 50+ local organizations and businesses 
  • Youth and family activities, including bouncy houses and sports challenges/clinics 
  • Main Stage performances from local artists and cultural groups 
  • Appearances from the Seattle Sounders, Reign, Mariners, and more! 
  • Free water activities, including paddleboarding, kayaking, rowing and sailing 
  • Adaptive and inclusive sport offerings in partnership with Seattle Adaptive Sports 
  • Second annual Big Day of Play Fun Run in partnership with Citywide Athletics 
  • Block party featuring art activities, face painting, a caricaturist and interactive games 
  • Tennis and pickleball competitions in partnership with Amy Yee Tennis Center 
  • 3-on-3 & 5-on-5 basketball tournaments from the Seattle Teen Late Night Hoop League  

Thank you to our generous sponsors and partners— Associated Recreation Council, King County Metro, Virginia Mason Franciscan Health, Seattle Mariners, Seattle Children’s Hospital, Washington State Charter Schools Association, King County Department of Public Health – Access and Outreach, Xfinity (Comcast), Atlantic Street Center, and Talkspace. 

If you’re interested in volunteering or participating as a vendor at Big Day of Play, please visit our website at bigdayofplay.org/ for more information. 

To stay connected and receive event updates, follow us on Facebook, Instagram and use #BigDayofPlay #BDOP25 to share your favorite moments!