If your trip to Boissy-Sous-Saint-Yon is all booked but your travel itinerary is a little on the empty side, we can give you a few hints and tips.There's nothing like exploring new places. While you're staying in the area, L'autodrome de Linas-Montlhéry and Chateau de la Boissiere ought to be among them. One more attraction to consider stopping by is Jardins d'Ollivier.