They say that in Paris you walk so much that you lose weight and don’t need to do sports anymore, but for many, a workout in Paris is essential. I have not yet met this Mr. They, but I can tell you that even as the kilos melt away, a bit of firming and toning is a good thing, especially after your morning croissant. And all that walking in stiletto heels—well, let’s face it, my knees hurt, my back hurt and I needed help. Yoga was murder on my feet (see stilettos, above), so my friends recommended a solid dose of Pilates for getting back to a workout in Paris.