Costeen Hatzi in Bathing Suit Enjoys "Holiday" With Nick Kyrgios

Model Costeen Hatzi and professional tennis player Nick Kyrgios are enjoying a trip together. The couple decided to travel to Nassau, and Hatzi posted photos of them on Instagram. In them, the couple lounged by the clear water. Hatzi captioned the post, “A well-deserved holiday,” referencing Nick's big Wimbledon final last weekend. How do they stay so fit? Read on to see 5 ways Costeen Hatzi and Nick Kyrgios stay 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. Nick Is Competitive

Kyrgios has to stay healthy in order to be a professional tennis player. His trainer, Matt James spilled some of his secrets to The Huffington Post. James says that Kyrgios is extremely driven and competitive. “He is extremely competitive and always wants to win, whether it's at tennis, basketball or FIFA PlayStation.”

2. Nick Does Fun Physical Activities

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James tells The Huffington Post that he keeps his sessions with Kyrgios fun. "A lot of the training I do with him is not just in the gym. I try to make it fun and introduce non-traditional disciplines into his regimen. We play basketball, mini tennis, we use the Ankorr System [a fitness trend using harnesses], the prowler [a type of sled] for sprint repeat efforts and a lot of tractor tyre flips, sled drags, farmers walks [walks with weights] and others."

3. Nick Is Vegan

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Kyrgios is on a vegan diet, and explained his reasons for doing so in a post on Athlete’s Voice. “I’ve been passionate about animal welfare for some time now. I don’t eat meat or dairy anymore. That’s not for my health, I just don’t believe in eating animals.I tried a vegan diet a couple of years ago but with all the travel I do, it was hard to stick to it. Since then I’ve managed to make it work, and I’ve been vegetarian for quite a while. Seeing the footage of these animals suffering with the fires only reinforces why I’ve chosen this diet. When I see these terrible photos, I can’t comprehend eating meat.”

4. Costeen Swims

Hatzi loves to swim as a way to stay in shape. As you can tell from her Instagram, the model spends a lot of time at the beach and the pool. She posted these photos of herself in the pool while vacationing in Palm Springs. She captioned the post, “Boyfriends of insta,” tagging Kyrgios.

5. Costeen Loves Coffee

Hatzi likes to enjoy a caffeinated beverage. Specifically, coffee. She posted this photo on Instagram of herself enjoying a large glass of it in Palma De Mallorca. According to Hopkins Medicine, coffee has a lot of benefits. “Caffeine is the first thing that comes to mind when you think about coffee. But coffee also contains antioxidants and other active substances that may reduce internal inflammation and protect against disease.”

Antigoni Buxton is sexy in the city this summer! The Love Island star enjoyed a day at the pool this week, showing off her fabulous figure in her swimsuit and sharing some snaps via social media. “Summer in the city,” she captioned the Instagram Stories. How does the reality star maintain her physique? Read on to see 5 ways Antigoni Buxton 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 Is a Foodie

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Antigoni’s mother is celebrity chef Tonia Buxton, and she has passed her love of food on to her daughter. "My life revolves around music and food and training so I can eat whatever I want,” Antigoni told the girls when she arrived on Love Island. “I don't really go for a specific type with looks. Every guy I've ever liked has this quality that's just like sauce."

2. Her Father Is Her Trainer

Antigoni’s secret weapon to staying in shape? Her father, Paul Buxton, is a personal trainer and his daughter happens to be his star client and workout buddy. “Proud of my beautiful daughter and training partner,” he captioned this post of the two of them in the gym.

3. She Dances

Antigoni, who identifies as a singer/songwriter, takes a lot of dance classes. She even has an entire tab dedicated to dance on her Instagram account. In this video, shared to Instagram, she shows off some of her moves. “When @daniellebartonn teaches a heels class to Red Flag. Dancing with my babes."

4. She Loves Water Sports

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Antigoni spends a lot of time in the water. She loves standup paddleboarding. On a recent trip to the Mediterranean Sea. She posted a series of vacation photos including one of herself paddleboarding in the water. She captioned the post, "Best place in the world." She also loves to swim.

5. She Skis

Antigoni is also into snow sports, including skiing. She hit the slopes in the French Alps earlier this year, showing off her moves on Instagram in this series of photos and videos of herself skiing in a red outfit. "My new favorite color," she captioned it. "Results indicate that downhill skiing, especially when performed on a regular basis, may contribute to healthy aging by its association with a healthier life style including higher levels of physical activity. Several other mechanisms suggest further favorable health effects of downhill skiing in response to specific challenges and adaptations in the musculo-skeletal and postural control systems, to exposures to cold temperatures and intermittent hypoxia, and/or emotional and social benefits from outdoor recreation," says one study.

Candelaria Tinelli is known for her fitness and her love of tattoos. She just shared a new selfie to her stories this week. In it, she lay on a beach towel. She wore a black bathing suit with rhinestones, showing of her body, and all her tattoos. How does she stay so fit? Read on to see 5 ways Candelaria Tinelli 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’s Comfortable With Herself

Tinelli is extremely comfortable in her own skin. And she isn’t afraid to show it. She shares a lot of revealing photos on her Instagram. She shared this topless photo, with her tattoos on display. Tinelli captioned the post, “Imperfection is beauty.”

2. She Plays With Dogs

Tinelli has a love of animals. Specifically, she loves to spend time with dogs. She shared this photo on Instagram of herself with a large dog. Tinelli captioned the post, “Paw.” Tinelli also shared this photo of herself sitting with her dogs on a park bench. She captioned the post, “Nature and my sons.”

3. She Horseback Rides

Dogs aren’t the only animal Tinelli spends time with. She also loves to spend time with horses. Tinelli is an avid equestrian and shares a lot of photos of herself riding on Instagram. Tinelli posted this riding photo on Instagram. She captioned the post, “With you, I can be me.” Tinelli also posted this video of herself taking care of her horse, captioning it, “A slug mom.”

4. She Goes To The Beach

Tinelli spends a lot of time outside. Specifically, she loves to go to the beach and spend time by the water. She shared this photo of herself riding on the beach. Tinelli captioned the post, “Excited, obviously I cried, when my eyes opened and I saw two horses on the beach.” She also shared this photo of herself playing on the beach with a dog. Tinelli captioned the photo, “Home.”

5. She Plays Tennis

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Tinelli loves to play tennis. She shared this photo on Instagram of herself at the court. Playing tennis has a lot of benefits. Better Health reports, “Tennis is a good sport for maintaining health, fitness, strength and agility. It also has social and psychological benefits. You can play with a club or with friends and family as a social activity.”

Cristina Buccino is enjoying her summer. Especially when it’s in a swimsuit. Her Instagram is full of swimsuit photos, including a new set of them from Ibiza. In it, she lounged on a chair at the beach in a black swimsuit, her impressive abs on display. She captioned the post, “Random of the day.” How does she stay so fit? Read on to see 5 ways Cristna Buccino 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 Swims

Buccino loves to go to the beach or the pool, and has posted several photos on Instagram of herself there. One thing she naturally likes to do is go swimming. She posted this photo of herself underwater, captioning it with different emojis of aquatic animals. She also posted this photo of herself sitting by the pool in Italy.

2. She Boxes

Buccino likes to box as a way to stay in shape. She posted these photos and one video on Instagram of herself boxing at the gym with her trainer. She captioned the post, “I’m back.” Boxing is a great cardio workout and helps build hand-eye coordination.

3. She Plays Tennis

Buccino loves to play tennis as a way to keep herself in shape. According to her Instagram, it is something she also likes to do on vacation. She posted these photos of herself on the court at the Emerald Resort in the Maldives. She captioned the post, “Padel time.”

4. She Spends Time Outside

Buccino spends a lot of time outside. Her Instagram is full of outdoor photos. She posted this set of photos of herself hiking in Es Vedra, Spain. She captioned the post, “Happy thoughts. Random of the day.”

5. She Loves Coffee

Buccino loves to enjoy a cup of coffee now and then. She posted this photo on Instagram of herself enjoying hot coffee with milk. Coffee isn’t just a good way to wake up, but also can be a health benefit. According to a study in Arch Intern Med, “High intakes of coffee, decaffeinated coffee, and tea are associated with reduced risk of diabetes.”

Influencer and TV star Karime Pindter may no longer be part of Acapulco Shore, but she is never giving up the bathing suits. Pindter posted a photo of herself wearing a brown cut-out swimsuit, highlighting her healthy physique. How does she stay so fit? Read on to see 5 ways Pindter 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. Snacking on Shellfish

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Pindter loves to indulge in Spanish-style shrimp tapas for a delicious bite. “Shellfish are high-quality protein sources—just like land animals—meaning they have all the essential amino acids,” says Faye Dong, professor emerita of food science and human nutrition at the University of Illinois. Shellfish are a great source in zinc, copper and iron, Dong says.

2. She Skis

Pindter is a big fan of snow sports like skiing. “For some, the first sign of snow means it is time to dig out the wool socks and blankets and go into hibernation,” says the University of New Hampshire. “For others, though, it means time to wax those skis and hit the slopes! Skiing is an incredible sport that involves physical, mental, social and emotional aspects of wellness. Often times winter can bring people into a depression called Seasonal Affective Disorder (S.A.D.). Skiing combines the great outdoor air with physical activity and some sunshine exposure that many people forget about.”

3. She Loves Beer

Pindter enjoys trying the local beer wherever she travels. “The main ingredient is usually pure, spring water from a reliable source,” says Jim Collins, MD. “It contains no cholesterol or fat, but has low to moderate levels of carbohydrates. Beer does contain an average of 25mg of salt, which isn’t all that bad. And, the good news is that most beers contain protein, calcium, potassium, phosphorus, and vitamins B, B2, and B6.”

4. Cheese and Olives

Pindter enjoys sheep cheeses like manchego with olives for a low carb snack. “Although high in fat, the majority is a beneficial mono-unsaturated variety called oleic acid,” says registered nutritionist Nicola Shubrook. “This fatty acid is associated with a reduced risk of heart disease. Oleic acid may help in this way by regulating cholesterol balance and reducing blood pressure.”

5. She Plays Tennis

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Pindter frequently posts pictures of herself on the tennis court. “Tennis participation is growing in America, due in large part to people learning how healthy it can be for them,” says Ajay Pant, senior director of racquet sports for Life Time. “Plus, it’s fun. And even better, it’s never too late to learn how to play.”