Burnitoff by pounding the cobblestoned streets of Vieux-Lille (the old town), perhaps with a sinful stop-off at macaroon-maker Patrick Hermand on rue Basse.
Those watching their waistline can register for the five or 10km Rump Roast Run to burnoff some calories in the morning, though it might be a wash as the winners each receive a raw 20lb rump roast.