I did not realize how big Lambert Wilson Park is when we were here for the Pan Am 2015 Torch Relay Celebration. It is the site of the Aurora Family Leisure Complex and access to the Nokiidaa Trail, Holland River Valley Trail and the Aurora Community Arboretum, 2 softball diamonds and more. A total of 29 Acres. Best to park near Aurora Family Leisure Complex if you are here for an event: Movie, Concert and Canada Day Celebration sponsored by the Town of Aurora. If you go a little up North, there is another access which you deal with unpaved gravel roads leading to the Trail areas of the Park.