Celebrities on Boats Pictures

The 2013 Cannes Film Festival is underway, and along with our star-studded arrival coverage, we're taking a look back at some of our favorite celebrity boating moments. When it comes to Cannes, stars love to let loose at yacht parties, but they also hop on board during their downtime in other locations. Brad Pitt, George Clooney, and Matt Damon set sail together to promote Ocean's Twelve, while Beyoncé got some sun before diving in for a snorkeling session. Scarlett Johansson lounged in her bikini with her bodyguard, and Kate Moss held hands with Jamie Hince while leaping from a lavish vessel in St. Tropez.

We're celebrating Cannes with a cheeky look at celebs on boats — click through to see their best moments afloat!

Source: Tumblr user Beyoncé Knowles, Getty, FameFlynet