If your trip to Champs-sur-Marne is all locked in but your itinerary is a bit on the empty side, we can give you a helping hand.Make the short journey out of the center and spend a few hours discovering Chateau de Champs-sur-Marne and La Ferme du Buisson. Once you've marked them off your list, head in the direction of Vaires-sur-Marne Lake.