Actress Sophie Nélisse first made waves when she starred as the lead in the film adaptation of The Book Thief. She currently stars on the hit HBO series, Yellowjackets. Nélisse recently enjoyed a beach day. She shared a new photo from the day on her Instagram story. In it, Nélisse stood in the water by the rocks in a two-piece swimsuit. How does she stay so fit? Read on to see 5 ways Sophie Nélisse 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!

Nélisse opened up about her life and career in an interview with ELLE. She says that she has a lot of confidence in herself, and that this has helped her in life. Nélisse cites wardrobe as something that has worked for her. "At the end of the day, I realized that it's a lot about confidence. If you feel good in it and you feel comfortable, it'll look amazing."

Nélisse opened up about her process of choosing roles to audition for to ELLE. She says that she likes to challenge herself, and likes roles that have a lot of nuance. Nélisse says that these are the reasons she auditioned for Yellowjackets. "I think that's so interesting to be able to offer nuances because we're all so nuanced as human beings, so I love embracing that," she explains. "I also try to go for characters that are out of my comfort zone. I come from quite a sporting background, so the competitiveness inside of me wants to take on characters that offer a challenge."

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Nélisse tells ELLE that she is extremely grateful for the career and opportunities she's been able to have. "I'm so grateful for coming from Montreal because I've kind of grown up out of the spotlight. I've just been crazy lucky to have been able to work with amazing directors—so many talented women. It still feels very surreal when I go to events and get to walk alongside actors that I admire so much. But I'm also happy when I have my little bubble back."

Nélisse spends a lot of time outside. One thing she likes to do to stay in shape is go hiking. She shares a lot of hiking posts on her Instagram page. Nélisse shared these photos of herself hiking in a field and by the rocks. She captioned the post, "My mom's mad because I didn't take a picture of the tarantula I found in the desert. In fact, I ran away as fast as I could."

Another outdoor activity Nélisse likes to do to stay in shape is going biking. She shared these photos on Instagram from a trip to Stanley Park, including one of her biking. Nélisse captioned the post, "More days like this please." Better Health reports that biking has a lot of benefits.  "Cycling can help to protect you from serious diseases such as stroke, heart attack, some cancers, depression, diabetes, obesity and arthritis. Riding a bike is healthy, fun and a low-impact form of exercise for all ages."