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Zac Efron -

If you've seen 'Down to Earth with Zac Efron,' you'll know the actor isn't scared of much. He's always been a thrill seeker, starting with skateboarding and surfing when he was younger, and upgrading to bungee jumping and swimming with sharks as an adult.

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Justin Bieber -

Justin Bieber became a millionaire at a very young age, which often has interesting results! He tried a range of extreme sports such as bungee jumping and skydiving, but was banned from returning to the skydiving center for refusing to pay the bill...

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Will and Jada Pinkett Smith - Will and Jada Pinkett Smith are a pretty cool couple. When they visited Dubai, they were compelled to try out skydiving and wind tunnel diving for the first time, as both of those sports at thriving in the city. They loved it so much that they brought their kids out to try it with them a couple of weeks later.

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Leonardo DiCaprio -

Leonardo DiCaprio is the guy who bought an entire island so he could preserve its natural beauty. When it comes to his hobbies, you know he spares no expense. In addition to wakeboarding, DiCaprio also enjoys 'flyboarding.' This basically involves putting jet boots on your feet in the ocean and shooting up into the air!

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Angelina Jolie -

Angelina Jolie decided to train as a pilot in 2007 because her young son Maddox loved planes. She now has her license and can fly solo in her Cirrus SR-22, which happens to be one of the world's fastest single-engine planes... She's definitely not afraid of pushing herself to new heights!

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Matthew McConaughey -

As you can tell just by taking a glance at him, Matthew McConaughey is into fitness. He's so into surfing that he used to live in a trailer that he parked on the Malibu coast, and now he's pretty much at a professional level. On top of that, he takes part in triathlons and completes them in insane times.

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Hugh Jackman -

Ziplining can be done on a small scale in a kid's playground, or it can be done hundreds of feet in the air over a terrifying canyon. Hugh Jackman prefers the latter! He famously once did a 100 foot (30 m) zipline from the Sydney Opera House to an outdoor stage to meet Oprah.

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Miley Cyrus -

According to the Perris skydiving company, Miley Cyrus was one of their most enthusiastic customers! She loved jumping and said she was "finally a bird."

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Richard Branson -

Billionaire Richard Branson is nothing if not extreme. He nearly died trying to break a record for the fastest transatlantic crossing in a speedboat, but he still went back and did it again the following year! He's also into kitesurfing, hot air ballooning, and most recently went into space.

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Ewan McGregor - Ewan McGregor once traveled around the world on a motorbike, through dangerous terrain and across even more dangerous borders. To save time, he now goes paragliding to get that adventurous thrill.

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Orlando Bloom -

Orlando Bloom likes to push his mind and body in a variety of ways. He's often seen mountain biking on extreme terrain, and has also tried his hand at Formula E racing. It might not be Formula One, but they're still some of the fastest cars in the world!

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Katy Perry -

Bloom is in good company with his wife! Katy Perry is definitely one of the celebs who seems like she'd be fun to hang out with! Based on some of her hobbies, she seems like she's up for a wild time. She even did the iconic bungee jump off New Zealand's Auckland Harbour bridge before a concert in 2011.

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Jason Momoa -

Jason Momoa prefers to maintain his mountainous physique through extreme sports rather than going to the gym. He enjoys surfing off the shores of his native Hawaii, and goes for mountain climbing when he's too far from the ocean.

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Jim Carrey - Jim Carrey had to do his own bungee jumping stunt for the 2008 movie 'Yes Man.' Carrey played a man who has to say yes to everything for an entire year. Seems like Carrey had no trouble saying yes to that role!

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Bradley Cooper - Bradley Cooper likes to invest part of his fortune into fast motorbikes. He's often seen speeding around the Hollywood Hills in head-to-toe leather and aviator sunglasses. As you can probably imagine, he looks good doing it!

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Patrick Dempsey -

Patrick Dempsey has been a Hollywood star for decades, but many don't know that his passion for race car driving rivals his passion for acting. His need for speed has seen him take part in numerous high-profile competitions including the 24 Hours of Le Mans and the Daytona Races.

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Jared Leto - Jared Leto is one of Hollywood's more eccentric stars. He became fascinated with the famous free solo climber Alex Honnold, star of the Oscar-winning documentary 'Free Solo' (2018), and the two struck up an unlikely friendship. Leto now accompanies Honnold on terrifying climbs, although he opts to stay attached to his ropes...

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Elle Macpherson - Australian beach babe Elle Macpherson has no fear when it comes to the water. She's been spotted waterskiing while on family vacations, along with a variety of other water-based sports.

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Prince William -

Some people might not consider skiing an extreme sport, but it certainly gets your blood pumping! And considering how many celebrities have died in skiing accidents, it's a pretty extreme sport for a future king!

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Woody Harrelson - Kiteboarding is one of Woody Harrelson's favorite sports. He also once climbed the Golden Gate Bridge in San Francisco as part of an environmental protest.

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Kate Bosworth - Besides acting, Kate Bosworth enjoys jumping out of planes from thousands of feet above ground. She did a 15,000 foot (4.5 km) jump in 2008.

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Simon Cowell -

Simon Cowell is another celeb who's into race car driving, but Cowell prefers to get down and dirty. Rallying is a specific kind of racing that usually occurs on dirt roads and can leave you with a completely battered car by the end!

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Bill Murray - Bill Murray is getting on in years, but he's not afraid to try extreme sports! In 2008, he went skydiving in Chicago, accompanied by the U.S. Army parachute team.

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David Beckham -

David Beckham is no stranger to physical extremes as a professional athlete. He often goes skiing with the whole family, and goes bungee jumping for that extra adrenaline rush.

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Sting -

Sting enjoys trying out some extreme water sports when he's on vacation. He was spotted windsurfing in Saint-Tropez a few years back, and looked pretty skilled at it!

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Jack Osbourne - If Jack Osbourne inherited one thing from his dad, Ozzy Osbourne, it's his penchant for extreme behavior! Osbourne is big into extreme sports, so much so that he even got his own reality TV show called 'Adrenaline Junkie.' Mountain climbing is one of his favorite sports, and he has climbed the 3,500 foot (1,061 m) Salathe Wall in Yosemite National Park.

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Natalie Imbruglia -

Natalie Imbruglia was the voice of the early 2000s, but nowadays she's into extreme sports. She was one of the guests on Jack Osbourne's show where she climbed the 8,000 foot-high (2.4 km) Mount Fable with him in Canada. After that, she flew to Hawaii for some free diving.

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Patrick Swayze -

The late Patrick Swayze is famous for his 1991 movie 'Point Break,' which boasts one of the most iconic skydiving scenes of all time. Swayze refused to use a stunt double and instead trained with his brother, who was an experienced skydiver. The scene where he says "adios amigo" and falls backwards out of the plane is all Swayze!

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Rowan Atkinson -

It might surprise you to learn that the mild mannered Mr. Bean is an avid enthusiast of fast cars. He has been taking part in racing since the 1980s and has appeared in the Renault Turbo Cup Racing series, as well as trying out his moves on the Silverstone Formula One track.

Sources: (Us Weekly) (The Richest) (Skydive Perris)

See also: Best seat in the house: Celebs at sports events

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