Eiza Gonzalez in Bathing Suit Says "Merry Christmas"

Eiza Gonzalez celebrated the holidays in her swimsuit. The 31-year-old Mexican actress wished fans a "Merry Christmas" on Saturday, flaunting her fabulous figure in a two-piece while standing on a boat. How does the 31-year-old actress maintain her fit figure? Read on to see 10 of Eiza Gonzalez's top tips for staying 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!

Eiza embraces and celebrates her body—cellulite and all. "So happy to share the May issue for Shape," she captioned a photo of herself on a recent Shape magazine cover on Instagram. "We spoke about how the fat on my hip is my favorite part of my body and why I feel sexier than ever when I see my thighs and butt jiggle. Something I never felt in my 20s. A self love journey to womanhood."

Gonzalez has struggled with accepting her body, especially when it is holding extra weight. However, now she views her womanly curves in a different way. "Maybe four years ago, I went on a trip with my then boyfriend and got photographed by paparazzi at the beach. You could see cellulite on my leg in the photos, and I was so embarrassed," she confessed to Shape. "Now I feel so sexy when I see my cellulite or my" backside—"that it's big, with little dimples. I feel so sexy just having a jiggle, or when I sit and my legs create that little fat on the side of my hip. I really do. I feel like a woman, I can move my body, and it makes me feel really empowered, something that I never would have felt in my 20s." 

Weight and interval training are Eiza's go-to workout methods. "This body needs to be happy by exercising, because I feel so good when I exercise. I go between three workouts," she said. "I do a lot of weight lifting with high weight, low reps — that's something that this Latina butt needs to get toned. I'm also training for a movie"—this was when she was training for Michael Bay's Ambulance with Jake Gyllenhaal—"by doing a lot of intervals: cardio mixed with movement."

"I swear by Pilates, and I die by Pilates," Eiza told Shape. "It works out muscles that I don't work out ever. Like this little one under my" chest "between my fourth and sixth left ribs."

"One day a week, I eat whatever I want. That's my one rule," she said. "I'll eat brownies. I'll eat pizza. I'll eat all the foods I want to eat because that's what this body needs to be happy."

One way Eiza eats healthy is cooking her own food. "This past year, I started finding new recipes and trying to learn how to cook. That really motivated me. I realized that I'm cleaning my system from the inside out, and it really began to show. It was beautiful because I've never felt as healthy as I feel right now," she admitted. 

"I like to keep moving every day, not necessarily 'work out' every day, but keep moving," she told Harper's Bazaar Australia. "It doesn't have to be intense, just getting the body some blood flow and not staying stagnant."

​​"I have to drink water all day, every day! Water has become such a basic life need for me because I travel so much and that dehydrates you a lot. From the change of weather to the plane, everything can be so harsh on you," Eiza told Harper's Bazaar.

"It takes a lot of discipline to wake up every morning two hours before schedule," the star told Harper's Bazaar. "People think it's like a 'super power', and I would love to say it's easy, but it's not that simple. But the reward is incredible because you become your own super hero. You see the possibilities and how far your body can go." 

Eiza encourages a predominantly plant-based diet. "I recently became plant-based as I'm doing a little bit of a switcheroo in my life with food and I've loved it," she explained to Harper's Bazaar. "I'm trying not to eat as much sugar. I will say, I am a 'chocolate freak', so it's really hard for me, but I choose one day of the week that I allow myself to indulge." And, when it comes to sugar, coffee, and alcohol, she tries to keep consumption to a minimum. "I'm trying to live a more organic and responsible life, in terms of how I eat. I try not to touch sugar. I'm trying to bring down the levels of coffee that I drink. I love coffee but it's something that's bad for your lymphatic system."