Is it me, or is this Cache #3?
Nice and basic find. A large flat stone is near by for logging or rest. Be cautious of traffic on the National Capital Commission Scenic Driveway (NCCSD). Rolls off the tongue.
The Farm has grown to more than 400 hectares and became surrounded by the city while retaining its original 19th century landscape. The first Director of Experimental Farms, William Saunders, and the first Dominion Botanist, James Fletcher, planted the first 200 trees and shrubs in the Arboretum in 1889.
To proceed to Cache #4, cross the NCCSD down Ash Lane until you get to the Experimental Farm Pathway. Follow path to GZ 4.