She played the role of a savvy investigator on CSI since , finally retiring the role this year. And Marg Helgenberger is taking the opportunity for a well-deserved break. The year-old displayed her toned figure while enjoying a day at the beach with boyfriend Alan Finkelstein and her son Hugh Rosenberg in St Barts on Monday. Fine form: Marg Helgenberger displayed her incredible figure while taking a dip in the ocean in St Barts on Monday The mother-of-one slipped into a flattering blue-green bikini for the outing, which showed off her womanly curves to perfection. Marg appeared to be wearing little to no makeup and had no qualms getting her famous red mane wet as she took a dip in the ocean.