The Knowlton Tunnel Field is located on Route 94 in Knowlton, NJ. It is owned by Green Acres and is managed and maintained by Knowlton Twp. The Park is opened to the public and it happily has walking and running paths, tennis, basketball, and pickle ball courts, a kids playground, and baseball, softball, and soccer fields.

Within the park are several Native Pollinator Gardens; one garden welcomes you right as you enter the park! The gardens are maintained by the Warren County Pollinator Protectors (WCPP). Members from WCPP meet regularly to remove invasive plants, like garlic mustard, from the garden sites.