Pictures: Rihanna and Cara Delevingne let their hair down in the South of France

Rihanna and Cara Delevingne let their hair down on rubber rings

Celebrity BFFs Rihanna and Cara Delevingne made the most of their luxury holiday on a yacht around the French Riviera and were pictured taking rides on rubber rings pulled by speedboats during the girls' getaway. Scroll down for video.

The pair reportedly hired a £300,000 super yacht over the weekend and are set to go to Barbados on another celebrity holiday in a couple of weeks.

After spending some time in the sea, Rihanna and Cara knocked back cocktails and shots on the yacht, while partying with a group of friends.

Model Cara, 20, shared a snap of herself with a male friend on Instagram and wrote: "Serious face! My boo @evan_erogers riding the waves like a pro".