Sharni Vinson in Bathing Suit Says "Get a Dog"

Sharni Vinson is getting fit in her swimsuit with her dog. The Australian actress and Survivor contestant shows off her incredibly fit figure – along with her pooch – in a swimsuit in one of her latest social media posts. “You want loyalty, get a dog,” she captioned the Instagram photo. How does she stay so fit? Read on to see 5 ways Sharni Vinson stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

1. She Boxes

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"Nothing had ever worked out my body like boxing. You're using every muscle in your body, and all the twisting action is fantastic for your abdominals!" Sharni told Self about her go-to workout. "There's nothing like punching a bag.”

2. She Dances

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Her other favorite workout? Ballet, she revealed to The Carousel. “I began dance at a very early age and come from three generations of musical theater performers. I studied ballet for many years and then jazz, modern and hip-hop. I also studied acrobatics and martial arts. In Step Up I also did break-dancing, street dancing, tango, ballroom, tap and parkour,” she added to Elle.

3. She Satisfies Her Cravings

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Sharni’s food philosophy is, “satisfy the craving,” she told The Carousel, noting that “coffee and chocolate, so basically caffeine,” are her go-to indulgences. Her favorite recipe? “Mamma Mole’s turkey meatloaf!”

4. She Does Pilates and Yoga

Sharni also loves pilates and yoga. Why is pilates a good workout? According to the Mayo Clinic there are lots of benefits to the workout, as it “strengthens the body's inner core while increasing its flexibility resulting in improved overall health. It can also promote longer, leaner muscles, injury prevention, relief from stress and back pain, enhanced athletic performance, and heightened mind-body awareness. And, there is a laundry list of reasons to do yoga, explains Harvard Health. “Researchers found that people who practiced yoga for at least 30 minutes once a week for at least four years, gained less weight during middle adulthood,” they said. “People who were overweight actually lost weight. Overall, those who practiced yoga had lower body mass indexes (BMIs) compared with those who did not practice yoga. Researchers attributed this to mindfulness. Mindful eating can lead to a more positive relationship with food and eating.”

5. She Kayaks

Sharni also kayaks, even with her dog, as can be evidenced by her latest post. Not only is kayaking great for building upper body strength and helps reduce stress, but can burn up to 400 calories per hour, translating to 1,600 calories in four hours of paddling.