Happy Memorial Day Weekend! To celebrate the unofficial start of Summer, we're looking at the celebs who love their warm-weather getaways. They're often spotted escaping to tropical locales, checking out city parks, or flying overseas with family when the weather warms up. Jessica Biel hit the surf while visiting Justin Timberlake on location in Puerto Rico, while the Kerr-Bloom family spent time together in Bora Bora. George Clooney took Stacy Keibler for a motorcycle ride around Lake Como, Italy, and Selena Gomez and Justin Bieber frolicked in the waves during a PDA-filled Hawaiian trip.

Click through to see all the awesome Summer vacations, and Happy Memorial Day!

Cameron Diaz arrived in the South of France today, just as the Cannes Film Festival prepares to wrap up the festivities this weekend. She flew out to France while taking a short break from filming The Other Woman in NYC. Cameron shot scenes with Nicki Minaj earlier this week, and her costar Leslie Mann was spotted on set yesterday.

Cameron had a chance to meet up with her old friend Leonardo DiCaprio, who has been taking part in Cannes nightlife after doing press for The Great Gatsby at the festival last week. Cameron and Leo hit the red carpet today for a Tag Heuer yacht party, and they are hardly the only stars visiting the festival — check out all the celebrities at the Cannes Film Festival before the party ends on Sunday.

Candice Swanepoel slipped into a tiny black bikini to hit the pool in Miami today. She was joined by boyfriend Hermann Nicoli for the sunny day, and the duo showed PDA in the water and drank wine on their lounge chairs. It's been a busy month of bikini time for Candice, who also put on a two-piece to pose for Victoria's Secret in St. Barts last week. Those hot shots may not have made it into the brand's "Summer of Sexy" swim catalog — instead different shots of her were featured in the special edition alongside images of Alessandra Ambrosio and Erin Heatherton.

The Cannes Film Festival is coming to a close on Sunday, but the South of France has been flooded with stars since it kicked off last Wednesday. Jeremy Renner joined his costar Marion Cotillard and their director James Gray at the photocall for The Immigrant this afternoon ahead of the premiere, while Uma Thurman smiled as she boarded a yacht before the red carpet. Yesterday, Heidi Klum took the stage with Kenneth Cole at the annual amfAR gala, and Leonardo DiCaprio and Baz Luhrmann were among the first to arrive in Cannes, since The Great Gatsby opened the international film extravaganza this year. Over the past two weeks, other stars like Matt Damon, Milla Jovovich, Justin Timberlake, and Alec Baldwin have also been getting in on the Cannes fun. Be sure to check back for more Cannes Film Festival photos, and don't forget to vote for your favorite stars in our POPSUGAR 100 bracket!

It was a week of fun for stars, between tropical getaways, Summer soirees, and red carpet premieres. Gwyneth Paltrow got support from her pal Kate Hudson at Goop's Summer party in London, while Miley Cyrus mingled with Madonna and Ke$ha backstage at the Billboard Music Awards in Las Vegas. Kristen Stewart had a smiley dinner with friends in LA, and Kate Middleton donned a bright yellow coat for a garden party with Queen Elizabeth in London.

Plenty more excitement went down this week — click through for the rest of the snaps!