From Highway 20 :
Take exit 496, Notre-Dame-du-Portage.
Turn to South direction (Opposite to St-Lawrence River).
Just after the first curve, take first right (Chemin du Lac). Don't pay attention to civic number before you past the first stop (before the iron bridge).
After the iron bridge, start to look for the house on your left.
If you arrive at a stop sign after the iron bridge, you slightly past the house.
From road 185/highway 85 :
Take exit 89, Rue Principale, Saint-Antonin.
Turn to West direction (opposite to Petro-Canada).
At the end of the road, turn right (chemin du Lac).
The house will be almost in front of you after few seconds.