Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why trust us?

Plus, everything she does to stay in such great shape.

Reese Witherspoon looks happy as a clam in a recent Instagram where she flaunts her long, toned legs and strong arms while posing on a surfboard.

Clearly someone is ready for the holiday weekend! The 46-year-old actress sported the festive blue gingham swimsuit from Draper James x Lands' End. She captioned the photo: "If 'vacation' were a swimsuit 👙🍹🏄🏼‍♀️," which is honestly super accurate. This has Fourth of July beach day written all over it.

"Like a princess in a swimsuit😍," one fan commented, while another complimented her "Summer glow❤️😍."

Agreed. She looks incredible. (Though really, when does she not?!)

A post shared by Reese Witherspoon (@reesewitherspoon)

Wondering how Reese stays in such strong shape? Look no further! Here are all her fitness secrets.

If you're a fan of Reese, you are probably familiar with her walk/run challenge. Basically, she encouraged fans to walk or run every day for a month.

Would anyone do a December Run (ok fine maybe a walk/run) challenge with me?? 🏃🏼‍♀️ pic.twitter.com/93bHvPUoED

In the process, she got the toned legs she just flaunted on Instagram.

Although the challenge has a "choose your own adventure" aspect to it, Reese shared what one day looked like for her: She alternated walking at a 1 percent incline for three minutes at 3.5-4 miles per hour and running for two minutes at 5.5-6 miles per hour for 30 minutes, according to Shape.

She also emphasized to her followers the importance of stretching and recovery time by showing them her foam rolling technique.

A post shared by Reese Witherspoon (@reesewitherspoon)

Reese also loves yoga! Her trainer said she enjoys headstands, handstands, and wall dogs, all of which increase healthy blood flow to her extremities, Pop Sugar reported.

Whether they are in a smoothie or raw on her plate, Reese loves her veggies. She makes sure to always have veggies on her dinner plate, according to Hello Magazine. She also shared her green smoothie recipe on Instagram, and tbh it looks realllllly good.

A post shared by Reese Witherspoon (@reesewitherspoon)

Definitely gonna try this one out. Thanks for the tips, Reese!