What Elon Musk, Mark Cuban, and 11 other successful people do on weekends

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For some, the weekend's a sacred retreat from the hustle and bustle of work.

For others, the weekend is a myth — Saturday and Sunday are mere extensions of the workweek and a chance to get ahead of the competition.

Judging from the ways successful people spend their — at least theoretical — time away from work, there really is no right or wrong way to structure your weekends. It's all about striking the right balance for you.

Here's how some of the most successful people do it:

Richard Branson hangs out on his island in the Caribbean.

While Branson told the Telegraph he spends half the year traveling the world on business trips, he said he spends the other half on his tiny private Caribbean island, Necker.

"I know I shouldn't, but I still like to party on Friday nights," he admitted. The business mogul said he dances until the wee hours of the morning to the sounds of the island's band, the Front Line, and heads to the crow's nest on his roof around 2 a.m. to watch the stars.

Despite being up late, Branson still wakes up early, usually before everyone else, and goes for a swim around the island.

"It's exquisitely beautiful; I'll see spotted eagle rays, giant leatherback turtles and a number of species of shark, such as nurse sharks and lemon sharks," he told the Telegraph. "It's not frightening; if you're swimming with sharks they don't tend to bother you at all, it's only if they mistake you for a seal that they might have a nip."

His morning swim is usually followed by a healthy breakfast of fruit salad or natural muesli, though on occasion he spoils himself with kippers or an English breakfast.

The day's activities could include tennis, kitesurfing, scuba diving, or hanging out with dolphins and whales in his tiny submarine. But Branson said afternoons are always spent on the beach, oftentimes playing chess with his kids. 

Saturday evenings consist of more partying, and Sundays include rock jumping, paddle boarding, and boat races, Branson told the Telegraph

Elon Musk spends time with his children.

Musk, the billionaire CEO of SpaceX and Tesla, has five sons, with whom, he told Mashable, he hangs out on the weekends.

But he also admitted at South by Southwest in 2013 that some of this "quality time" is spent sending emails.

"Because they don't need constant interaction, except when we're talking directly," he said. "I find I can be with them and still be working at the same time."

Arianna Huffington catches up on email.

Though she admits that she likes to go through her inbox Saturdays, the "Thrive" author has said she never expects a response from her staff.

"If I send an email at 11 at night, it's to get it off my to-do list, but I don't expect a reply," she told Mashable. "And I make that very clear, I don't expect replies over the weekend."