Grandview Off-Leash Dog Park

Grandview Off-Leash Dog Park is a 37-acre off-leash dog park located at 3600 S. 228th Street in SeaTac, Washington, featuring expansive open fields with panoramic views of Mount Rainier and amenities including agility courses, water fountains, and swimming areas. The park is maintained by Dogs of Grandview Supporters (DOGS), a 501(c)(3) nonprofit volunteer organization dedicated to keeping the facility safe, clean, and enjoyable for dogs and their owners. Notably, the park sits on a former Cold War-era NIKE missile site, adding historical significance to this beloved community resource that serves as the first major off-leash dog park in South King County.