Killarney is about a 4.5 hour drive from Toronto. Take Highway 400 north to Highway 69 north.
Turn off of Highway 69 onto Highway 637. You will pass through the Provincial Park. About 8 km after the Park Gate, you will see a sign on the right that says "Speigel" (#1108).
Turn right into the property and then take the left-hand fork in the road. Proceed slowly along a dirt road until you see the deLamorandiere Rock gate. Turn right and proceed slowly to the cabins.