Go to Samedan, Switzerland, book yourself and your mates into the Badrutt's palace, don't forget to have lunch at their Nobu restaurant, then off to the Cresta run for a decent rush of adrenaline.
St.Moritz is done in 2 days, so then fly on to Siena, and have wine and food tasting couple of days around there (try the poggio antico restaurant in Montalcino), then fly home...
Don't forget to invite me along for the ride