Dee Devlin and her partner, professional fighter Conor McGregor, are on vacation. She just posted a new set of photos on Instagram of their trip. In them, the couple lounged in chairs by the pool. Devlin wore a red one piece swimsuit and a baseball cap. Her figure was on full display. How does she stay so fit? Read on to see 5 ways Dee Devlin 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!

After having her first child, Devlin made sure to work out. Devlin also used McGregor to help her design a workout. One thing she did was work out her upper body. Devlin posted this photo on Instagram of herself using cables. She captioned it, "Getting that pre-baby body back with the @conormcgregorfast conditioning program!"

Devlin spends a lot of time at the beach. She shares a lot of beach photos on Instagram. One thing she likes to do is go swimming. The first photo in this series is of Devlin and McGregor going for a dip in the ocean. Devlin also posted these photos and videos of herself swimming with her husband and kids. df44d9eab23ea271ddde7545ae2c09ec

Devlin doesn't just like to swim when she goes to the beach. She also likes to ride jet-skis. Devlin posted this photo on Instagram of herself and McGregor jet-skiing in the ocean.

Devlin likes to go on walks. She sometimes will bring one of her kids, her dog, or her partner with her. Devlin posts a lot of photos on Instagram of herself walking outside. She shared this photo of herself taking her dog for a walk through a field. She captioned it, "Sunny morning stroll."

Devlin and McGregor are both extremely active. The couple likes to do a lot of activities together. McGregor shared this video on Instagram from a trip they took to the Bahamas for Valentine's Day. In it, they are seen biking, playing tennis, and going to the gym. McGregor captioned it, "Valentine's Day in the Bahamas. Happy Valentine's Day my baby girl Dee. I love you so much."