Grace Kelly's glamorous granddaughters Camille Gottlieb and Pauline Ducruet pose up a storm in colourful bikinis as they soak up the sun on a boat in the South of France

Grace Kelly's glamorous granddaughters Camille Gottlieb and Pauline Ducruet pose up a storm in colourful bikinis as they soak up the sun on a boat in the South of France