Jack Schlossberg, former President John F. Kennedy's only grandson, displayed his toned physique while holding a paddleboard in a March 2017 Instagram photo. "Left to right: armadillo, homie jones ...

Kennedy Jr.: ‘It’s Not Complicated’ Jack Schlossberg, JFK's Grandson, Hops on a Paddleboard in N.Y.C. to Celebrate Passing the Bar Exam Quality Mother-Son Time! Jack Schlossberg and Mom ...

Goes Surfing in Rare Casual Outing: 'Fully Embracing Aussie Lifestyle' Jack Schlossberg Celebrates Turning 30 with a Nighttime Paddleboard Trip — and a Cupcake Jack Schlossberg Recalls When ...