GreenWorks was part of a multi-disciplinary team that renovated this regional wastewater treatment facility and iconic waterfront park in historic downtown Oak Harbor, Washington. Routes for cars and people on either side of the facility provide easy access from downtown Oak Harbor to the 28.5 acre Windjammer Park on the waterfront. The site plan required the creation of strong physical and visual links along these axes. The planting and hardscape reflect the coastal setting, with the inclusion of rolling dunes planted with coastal grasses and perimeter sidewalks, emulating local wooden docks. Parts of the facility are exposed to the public, offering opportunities for interpretation along the two main thoroughfares.GreenWorks led the design effort by working closely with the City of Oak Harbor, the Community Advisory Group, and the public to devise a preferred concept. The final concept plans for a renovation of the swimming lagoon, improved pedestrian walking trails, reconfigured parking lots, new events plaza and splash park outside the facility, as well as a performance stage, new playgrounds and multi-use fields. To aid implementation, GreenWorks developed a phasing plan to guide the future programming of Windjammer Park.