A key milestone in South King County’s trail network will be celebrated starting at 11 a.m. this Saturday, June 7, 2025, with the grand opening of a major segment of the Lake to Sound Trail in SeaTac.
The newly completed section adds seven continuous miles of paved trail, creating a vital connection for pedestrians and cyclists between Burien and SeaTac, with future links extending to Des Moines.
Once fully built, the 16-mile Lake to Sound Trail will stretch from the southern tip of Lake Washington to the Puget Sound shoreline in Des Moines.
The celebration will begin at 11 a.m. at the trailhead near 19111 Des Moines Memorial Drive in SeaTac (map below). King County Executive office will be represented by newly appointed Executive Shannon Braddock, who will join elected officials and community leaders from Burien, SeaTac, and Des Moines.
The trail expansion was made possible by funding from the voter-approved King County Parks Levy, the Washington State Department of Transportation, the Port of Seattle, and the Washington State Recreation and Conservation Office.
Organizers encourage the public to attend the ribbon-cutting event, explore the trail, and learn more about its future connections to high-capacity transit and other regional routes.
