Lake Sawyer Park Boat Ramp, located on Southeast 296th Street in Black Diamond, provides public access to Lake Sawyer with a boat launch facility and a $5 parking fee.

The park offers amenities including picnic areas, restrooms, and parking, making it suitable for both motorboat and kayak launching. The ramp is managed by the State of Washington and serves as the primary public boat access point for this 286-acre lake.