If your trip to Saint-Lambert is all locked in but your travel itinerary is looking a bit empty, we can give you a helping hand.Plan a stop at Masin du Parc Naturel de la Haute Vallee de Chevreuse. It's one sight you'll find on many visitors' must-do lists. Chateau de Dampierre and Château de La Madeleine are also not far away and worth taking the time to see.