Grettell Valdez in Bathing Suit is "In the Sea"

Grettell Valdez, the Mexican star of Buscando a Frida, just posted a stunning new throwback photo to her Instagram. In it, she enjoyed a beach day, and posed on the shore. She wore a brown, tan, and red patterned bathing suit, her abs on display. Valdez captioned the post, "Why in the sea…..? I read them." How does she stay so fit? Read on to see 5 ways Grettell Valdez 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!

One way Valdez likes to stay in shape is by using a medicine ball. She has one in her home, and does exercises there. She posted this photo on Instagram of herself about to workout. Valdez captioned the post, "There are days when you don't feel like doing anything, but those are the days when you have to get more attitude."

Valdez loves to spend time by the beach and in the water. Her Instagram is full of photos of herself going for a swim. She posted this photo of herself wading in the ocean in Holbox. She captioned it, "Unfiltered, only the magic of Holbox." Get outside. "The study also found that even in urban areas, where there is less access to green space, simply bringing the green inside – with photographs and indoor plants – also had positive effects on children's moods," says the Cleveland Clinic.

Valdez loves to roller skate on the weekends. She posted this photo of herself about to go for a skate on Instagram. She captioned it, "Happy Saturday. It's not easy but I don't give up. We keep practicing." "Summer time is a great time to get out and do things that are good for your health. Biking, Rollerblading and even gardening can get you moving. But don't forget to pay attention to safety while you're outside playing," says the Mayo Clinic.

Valdez loves to ride bikes as a way to stay in shape. She posted this photo on Instagram of herself going for a ride. Valdez captioned it, "This is one of my favorite plans. Who's going to Reforma with me tomorrow?" "When purchasing a mountain bike, be sure that it is the right size. You should always be able to put a foot on the ground to steady yourself, and when standing over the bike on both feet there should be a few inches of clearance between you and the top tube of the frame. A helmet is a must, gloves can protect your hands if you fall, bike shorts can add comfort to your ride and bike shoes and clip-less pedals can improve control and skill," says ACE Fitness.

Valdez loves to go to the beach, and doesn't just like to swim when she's there. Valdez is an avid waterskier, and has posted videos of herself doing so on Instagram. She posted this video of herself taking a lesson, captioning it, "I miss my dear Acapulco and my classes. My teacher, who is very patient with me."