The posted coordinates will take you to a small plaque at the corner of College Street and Smith Lane, next to the Ontario Veterinary College. Parking is available off of Smith Lane, in one of the University lots. The coordinates for the final cache location can be found by reading the plaque and doing the math below:
A = number of saplings planted + the year the saplings were planted
Divide A by 1000 and subtract your answer from the following coordinates:
N 43 35.894 W 080 18.383
The cache itself is a camouflaged peanut butter container, with a logbook and a few trade items. There is an unactivated trackable from the GHGAFAP event in Rockwood for the FTF.
You can check your answers for this puzzle on GeoChecker.com.