Located north of Brockville, just two km from Highway 29, Mac Johnson Wildlife Area includes 532 hectares of wetland, field and forest. The reservoir located on this property is a Class 1 provincially significant wetland with a high diversity of plant and animal life. There are 11km of trails that cross woodland, wetland and field areas. A skating rink is maintained on the pond when conditions permit. A skating shelter and a bonfire pit are available beside the pond. The Wildflower Loop (trail 1) has been developed as an interpretive trail. Picnic tables, a large picnic shelter, a group firepit, barbecues and handicapped washrooms are available on the north side of the reservoir. A small picnic area and a canoe access point is also located on Centennial Road.