Isla Fisher in Bathing Suit Says "Farewell Caribbean Skies"

Isla Fisher is already missing the stunning ocean and beaches of the Caribbean. The Aussie actress posted a series of photos on Instagram, including one of herself lying on the beach wearing a gorgeous red and white checkered print swimsuit. “Farewell Caribbean skies 🌸,” she captioned the post. How does she stay so fit? Read on to see 5 ways Fisher 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 All About Yoga

Momodu Mansaray/WireImage

Fisher says she loves yoga, especially the effect it has on her glutes. “Yoga is a wonderful way to tone and shape all the gluteal muscles without using any weights, equipment or machines,” says trainer Elise Joan. “Since yoga uses our own body weight to build muscle, it can be an effective way to shape your booty with a low risk of injury. Below are my tried-and-true moves to help lift and round your seat, while strengthening the hips and improving flexibility.”

2. She Loves Her Stomach

Axelle/Bauer-Griffin/FilmMagic

Fisher says she doesn’t have a flat stomach, but it’s still her favorite part of her body. “It's still my favorite because it reminds me of my greatest achievement: my babies,” she says. “For me, so much about life is acceptance. You can look in the mirror and find a million things wrong with yourself. Or you can look in the mirror and think, ‘I feel good, I have my health, and I'm so blessed.’”

3. Horseback Riding

Andrew Toth/Getty Images

Fisher is an accomplished horseback rider. “Riding a horse for 45 minutes at a walk, trot and canter can burn up to 200 calories,” said Dr. Dennis Sigler, a Texas A&M AgriLife Extension Service horse specialist and professor in the department of animal science at Texas A&M University in College Station. “If you do something a bit more strenuous such as cutting or reining, that can come out to nearly seven calories per minute for the entire length of the riding period.”

4. Swimming and Snorkeling

Frazer Harrison/Getty Images

Fisher enjoys swimming and snorkeling. “Many people say that by simply being in the water they feel more relaxed and less stressed,” says swimming instructor Emily Morrissey. “Regular exercise helps reduce anxiety and depression, as it releases ‘feel good’ hormones and keeps our brains working in a healthy way. Learning to swim can allow you the opportunity to swim in beautiful places outdoors which many people find to be memories they cherish.”

5. She’s a Pescatarian

Fisher follows a pescatarian diet. “The pescatarian diet is widely accepted as being a nutritious choice due to the known benefits of a vegetarian lifestyle, coupled with high-protein, lean white fish and omega-3 fatty acids found in oily fish including salmon, mackerel, herring and fresh tuna,” says registered dietician Emer Delaney. “This style of eating has shown a reduced risk of developing conditions such as type 2 diabetes, high blood pressure and obesity, all of which are risk factors for heart disease. In addition, a 2016 study showed that omega-3 fatty acids were associated with a lower risk of fatal heart attacks.”