Walnut Woods State Park is a tranquil destination for anyone seeking the outdoors near the state’s capital city. The park is home to Iowa’s largest stand of black walnut trees, with one of the park system’s finest examples of a 1930's CCC-era lodge. Nearby, launch a canoe at the Purple Martin Water Resource Area or observe the purple martins that inhabit the area. These fascinating birds have their own unique establishment near the lake. Reserve the recently renovated lodge through the online reservation system for Walnut Woods State Park for weddings, graduations or large family gatherings. The year-round lodge offers both indoor and outdoor fireplaces, along with a shaded outdoor shelter area and lawn. Several shaded picnic areas with fire grills can also be found in the park. Visit our website for more information, and contact us with any questions!