The model is on a summer break with a large group of friends, her boyfriend Jamie Hince – who was clearly in holiday mode in a pair of denim shorts - and Kate's six-year-old daughter Lila Grace.
Kate and Jamie joined their pals to soak up the rays aboard a luxury yacht named Serenity in the upmarket French resort, where the model was at one point spotted tucking into an ice cream.
Also unwinding in the French Riviera this week is Phil Collins. The music star was joined by his TV presenter partner Dana Tyler and his children Nicholas, five, Matthew, nine and 20-year-old Lily.
As Dana planted a tender kiss on her musician beau's chin, it was clear they're more in love than ever. The couple met in 2006 when Dana interviewed Phil at the Broadway opening of Tarzan, for which he penned the music.
Since then she has become very much a part of the family, and gets on well with Phil's sons and daughter Lily, who is shaping up to become something of a star like her father.
The pretty brunette has taken her first steps on the start of a modelling career, and has also tried her hand at acting, appearing on American TV show 90210.