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.

Of course, her vacation wasn't without some training: