Grass Lake Nature Park

Grass Lake


171 Acres


814 Kaiser Road NW

Park Features 

  • Trailhead at 814 Kaiser Road NW
  • Trailhead at 3432 6th Ave NW
  • Loop trail approximately 1 mile in length

Pets are not permitted in Grass Lake Nature Park.

Park Improvements

The City will construct a new asphalt multi-use trail through Grass Lake Nature Park from Kaiser Road to the gravel maintenance road through the Harrison Avenue Parcel.  A new trailhead with expanded parking will also be constructed. This project is partially funded by a $467,990 State Recreation & Conservation Office grant. Construction will begin in 2022. 

Park History

Grass Lake Nature Park is a sleeping beauty of Olympia's park and open space inventory. Acquiring the property was a steady vigil for property owners, citizen groups, Olympia City Council and staff in the late 1980's. As the hard work of all may be forgotten over time, the place we call Grass Lake will remind us endlessly of our ties with nature.

The park contains the headwaters of Green Cove Creek and one of the most environmentally intact wetland systems in northern Thurston County. Over 100 bird species and 200 plant species have been recorded in the park. Grass Lake Nature Park's primary functions are wildlife protection, wildlife viewing, and environmental education.