Celebrities are proving age is just a number.
Paulina Porizkova, Halle Berry and Elizabeth Hurley are just a few of the stars over 55 who stunned in recent Instagram posts showcasing their toned bikini bodies.
Whether they were celebrating a milestone birthday or vacationing with their friends, these stars wowed fans.
Here are some of the best bikini photos from this week.
PAULINA PORIZKOVA WOWS IN STRIKING BIKINI WHILE CELEBRATING HER 61ST BIRTHDAY
Paulina Porizkova posed for a photo shared on her friend Tereza Maxová's Instagram page while on vacation in Türkiye. Maxová captioned the post, "54, 61, 77. Age is just a number. ✨❤️"
In the photo, the 61-year-old former supermodel is all smiles as she poses in a white bikini top and gray cover-up that shows off her defined abs and slim figure.
Her two friends also flaunt their swimsuit bodies, as they stand for the photo with Porizkova wrapping her arm around one of them and holding the other's hand.
"I love being reminded of what a wonderful time I had with you! We’re three 🔥babes😁," Porizkova wrote in the comments section. Fans also could not help but compliment the trio, with one writing, "Gorgeous women all of you ❤️❤️❤️."
Halle Berry celebrated her 60th birthday with a series of swimsuit photos on Instagram, proving age is just a state of mind.
The actress traveled to Los Cabos, Mexico with her fiancé Van Hunt, and took advantage of the picturesque scenery, which posed as the backdrop for her swimsuit photos.
One of the photos featured the actress in a black lace one-piece swimsuit, which she paired with a black sunhat. She posed for the photo with her hand on her head as she looked away from the camera.
Another photo from the post showed her and Hunt smiling as they posed together on a boat with rock formations behind them. Berry wore a black bikini and a white cover-up with a halter neckline.
"Some experiences stay with you forever ! Thank you @zadunreserve @ritzcarltonreserve for making every moment of my 60th birthday celebration simply magical!" she captioned the post. "The cuisine, Sensei wellness spa, wine making experience and boat adventures were beyond exquisite! This was a big birthday and, along with @vanhunt, you made it one I shall never forget ! 💥"
KATE HUDSON SHOWS OFF FIT BODY IN MULTIPLE STRING BIKINIS DURING FAMILY VACATION IN GREECE
In a separate Instagram post, Berry turned heads in a black and white bikini, captioning the post, "Nothing is B&W."
Some of the photos show the "Catwoman" star giving the camera a serious expression while walking in the sand during golden hour, while another shows a close-up of her toned figure as she stands on the steps of a swimming pool.
"Ladies and gentlemen, THEE Halle Berry 🙌🏿," one fan wrote in the comments section. Another added, "60 never looked sooooooo good!!!! 🔥🔥🔥"
Elizabeth Hurley is relaxing and unwinding in St. Tropez.
She took to Instagram to share photos from her recent trip to the French Riviera with her son, Damian, and boyfriend, Billy Ray Cyrus, as well as Joan Collins who hosted the getaway. In one photo, the duo can be seen posing in the pool.
"Thank you to the magnificent @joancollinsdbe and Percy for the most enchanting holiday in St Tropez. We adore you 🩷🩷🩷🩷," she captioned the post.
In the photo, Collins looks stylish in a one-piece white swimsuit, which she paired with a white hat, black sunglasses and a drink in her hand, while Hurley stuns in a red string bikini as she poses with a big smile on her face and her arms in the air.
Fans could not get over both Collins and Hurley's youthful appearances at 93 and 61 years old, respectively, with one writing, "Beautiful ageless people 🌈💖gives me hope 😅" and another adding, "Stunning to say the least. Two of my favorite ladies. Billy is a lucky man. ❤️❤️❤️"
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Nicole Kidman looked serene in a recent bikini photo she shared on Instagram.
The 59-year-old actress shared a series of photos from her recent trip to Iceland, including one of her sitting in a hot tub on a yacht, while wearing a blue bikini with frills on it.
"Beautiful country, trip of a lifetime. @ritzcarltonyachtcollection, thank you for being so kind to my family and guests. We love you Iceland!! 🇮🇸," she wrote in the caption.
"Nic you have some nerve being this chic," one fan wrote in the comments section, while another added, "Always wondrous 🥹❤️🔥."
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Heather Graham had a relaxing summer vacation in Positano, Italy with her boyfriend, Michele Civetta.
"I love Positano and pasta Nerano! 🇮🇹❤️" she captioned the post, which featured a number of bikini photos from her trip.
In one of the photos, the 56-year-old "Flowers in the Attic" star posed in a blue bikini and black sunglasses as she made her way down the coast with the cliffside visible behind her.
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In other photos, Graham turns heads both in and out of the water in a red bikini with white polka dots on it. She first pairs the look with a large sunhat and sunglasses as she stands on the shore with the mountain village behind her, and then removes the accessories to take a dip in the calm ocean.
Graham also shared several other photos of her posing in bikinis, including one of her sitting in the water and leaning forward on her arms while dressed in a black bikini with white polka dots.
"You should write a book about How to Look Perfect 🙌❤️," one fan wrote in the comments section, while another added, "🙌🔥 still eye candy fountain of youth."
A third fan chimed in with, "Wow, she must have great genes!" and a fourth also commented on her youthful appearance, writing, "Age defying exquisiteness ... 🔥❤️."
