The big sailing which includes the ships of more than 25 metres knows a beautiful growth in spite of the crisis. It establishes a form of realization of the great wealth of billionaires' minority by which the number does not, however, stop increasing. This world is just showing, but it remains relatively secret. This ambivalence generates wide economic fallout, and it sometimes requires very important harbour arrangements. A real competition takes place between some harbour cities which want to attract this luxury clientele and the other tourists, less easy, but more numerous, who are attracted by the presence of these prestigious yachts.