There's now a dog park located within the 2500 acre Mercer County Park in West Windsor on Rt. 571 in the recreation complex. It's right behind the skateboarding park and has separate areas for large and small dogs. Your dog will have a blast running around the open space and playing with other dogs. There is also a fountain for water and a few benches along the edges for owner to sit and relax. The benches are in the sun so bring a chair if you prefer the shade!