Watch: Serena Williams enjoying her Croatian vacation

Serena Williams was spotted hitting the practice courts in Croatia last week but the trip wasn't all about work. Serena went on a social media spree over the weekend posting photos and video of her Croatian vacation, which included bikini-wearing, some snorkeling and acrobatic ice cream eating:
Williams took a much needed three-week break after her early exit at Wimbledon, which culminated in a bizarre and worrisome retirement from her doubles match with sister Venus. According to her Twitter, she's back to training with Patrick Mouratoglou to prepare for her next tournament, the Bank of the West Classic, which begins next week.
@serenawilliams don't tease me ! I am already so energized by the new Challenges that we set up as our goals. See you soon, I am ready.
— Patrick Mouratoglou (@pmouratoglou) July 19, 2014
Of course, her vacation wasn't without some training:

Contributor, SI.com Nguyen is a freelance writer for SI.com, providing full coverage of professional tennis both on and off the court. Her content has become a must-read for fans and insiders to stay up-to-date with a sport that rarely rests. She has appeared on radio and TV talk shows all over the world and is one of the co-hosts of No Challenges Remaining, a weekly podcast available on iTunes. Nguyen graduated from the University of California, Irvine in 1999 and received a law degree from the University of California, Davis in 2002. She lives in the Bay Area.