If your trip to Saint-Forget is all organized but your itinerary is looking a bit empty, let us give you a helping hand.Near the city center, Masin du Parc Naturel de la Haute Vallee de Chevreuse is one spot to consider adding to your must-see list. If you still have room on your itinerary, Castle of Breteuil and Chateau de Dampierre will keep you occupied as well.