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Start your day by taking the RER B from Gare du Nord to Sceaux, rather than Parc de Sceaux. From there it's a short walk into the town, where you can get cracking on the most important task: food shopping. The pedestrianised Rue Houdan is the ideal place to build a gourmet picnic. Stop by Au Porcelet Rose (41 Rue Houdan) for salads and terrines, Verdot (37 Rue Houdan) for a beautiful goat’s cheese and Sarah Baker (78 Rue Houdan) for fresh baguettes and Nutella éclairs. Come on a Wednesday or Saturday to pick up a punnet of strawberries (or two) at the twice-weekly market.