Go to Le Food Court at the Galeries Lafayette department store, Champs Elysées. They've got what's probably the biggest deli you've ever seen with an amazing selection of cheeses and meats, and a patisserie for the perfect picnic food. You can also find plenty of goods to take home, like the tea served to the French Royal Family, and Parisian chocolate and make sure to keep an eye out for the wall of water.

Agitations tropicales - L'Impératice