We are going to be in Paris in August as part of a trip to Europe and staying near the Eiffel Tower (we are on Line 7 - Ecole Militaire). We will have 3 children age 9, 7, and 5 with us who have a lot of energy. We are planning to do Notre Dame, Jardin des Tuileries (hopefully other gardens as well - kids will love them), Louvre, Musee d'orsay, Champs de Elysees, and the Arc de Triomphe. I would love to walk a lot of the city but will I be asking too much? We will be there for 4 days excluding arrival and departure days. Thank you for any advice you can give.