McMaster Parking comes at a high cost to the natural world. The largest parking area ("M") is located where there were nature trails and habitat for turtles and other creatures. Close-up of parking lot M below:
Zone M parking at McMaster - the section currently closed as a result of construction of the combined sewer overflow (CSO) tank corresponds roughly to the selection below:
It is clearly visible that the parking is very close to Cold Spring (AKA Ancaster) Creek - a 30m naturalized buffer seems like the least we can do to ameliorate the destruction of habitat for parking.