Summer Power TripsCarla Bruni hit the beach, Sting went paragliding, Naomi Campbell strolled in St. Tropez and Jack Nicholson did a belly flop. VIEW OUR GALLERY of how stars spent their vacations.Updated Jul. 14, 2017 4:26PM ET / Published Aug. 21, 2009 9:55AM ET FilmMagic / Getty Images