In collaboration with theForest Preserve District of Cook County, volunteers have maintained a tennis oasis since 1924 at the corner of Lake Street and Harlem Avenue for all to enjoy.Season passes and usage fees cover all operating expenses.Newly renovated for 2010, players of all skill levels are welcome to experience nine state-of-the-art clay courts. For a day trip, make lunch in the kitchen and relax at a picnic table or in the clubhouse. Entrance is off of Bonnie Brae, and the facilities are open May 15 - Oct 1.