If it's still summer and you want to avoid the more touristy places head to the "beach" at la Villette and enjoy free loungers, free mini-boats for kids aged 6 to 10 and even free tea snacks for the little ones.
There are two new excellent cinemas with bookstores/DVD/cds. Also, you can walk along the Canal and head towards La Vilette science and tech exhibition and the famous Cite de la Musique.
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