Will be taking a couple of 18 year old girls as a graduation gift on an escorted tour to London, Paris, Brugge, Amsterdam in early June. We will be in Paris for 3 nights, we travel from London to Paris on the Chunnel on the first morning have that afternoon free, take a 1/2 day city tour the next morning, with the afternoon free, then have the last day free. We will be staying in the Sacre Coeur area. Would love any suggestions for something really cool to do with them that would leave them with a lasting memory of the not so touristy Paris, (there are 8 of us total so we could possibly even hire a tour for our group). We are all fit and adventurous. We are planning to do the Eiffel Tower behind the Scenes tour and visiting the Louve, thought we could do those things on those free afternoons. Would love any suggestions or your thoughts on this. As always, TAers are the best!!!!