Mercer County Park encompasses over 2500 acres covering areas of the Townships of West Windsor, Hamilton and Lawrence. The Park has year round facilities for all ages and includes both active and passive recreational opportunities. Miles of trails loop almost completely around the park that are well traveled and well maintained. Besides the wooded dirt trails, you will find a 5+ mile paved path, hiking area for every level, cartop boat launch, multiple playgrounds, a boathouse for local crew teams, many picnic areas, tennis courts, a dog park for both large and small sizes, and special events year round.