How about that?! Pippa Middleton‘s baby boy, Arthur, isn’t just spending his free time sleeping and crying all day. Pippa, 36, has actually been taking him to a baby gym so he could have a fun space to exercise.

“Now that Arthur is 11 months old and more mobile, I have been trying to come up with different activities to do with him,” Duchess Kate‘s little sister recently explained in her Waitrose Weekend fitness column. “I needed to find something more than just park walks in the pram. Our local baby gym has been a saving grace. It’s a big space full of fun, soft objects, playmats, stairs, balls, swings, mini trampolines and more to stimulate and physically engage babies and toddlers.”

Pippa Middleton and her baby

Not only that, but Pippa enjoys going too. “The classes have structured activities that help promote movement, balance and strength,” she said. “But there’s also free play. Arthur burns lots of energy in this safe environment and learns many physical skills. I have also noticed him building his confidence with each visit.”

Pippa, who shares Arthur with her husband, James Matthews, recently said their son has been learning a lot more than how to playfully exercise. He’s allegedly been taking swimming classes too!

“Starting my son Arthur swimming at 4 months old has given him confidence and enjoyment in the water,” Pippa previously gushed to Waitrose Kitchen. “He’s now 6 months old, and swimming is one of our favorite activities. The exercise helps guarantee sound daytime sleeps, and the movement has improved his digestion.”

Pippa Middleton's baby

According to professor Greg Whyte, whom Pippa interviewed in the magazine, a kid doesn’t have to be a certain age to learn how to swim.

“Children can be taught to learn to swim at any age,” he reportedly said. “There’s no real difference between taking your baby swimming in water that’s been disinfected by chlorine or a salt-based method. Open-water swimming, however, is not recommended as it may carry an increased risk of infection.”

We wonder if Kate’s 1-year-old son, Prince Louis, is already learning how to swim and exercise too. Let’s keep our fingers crossed for a playdate between these cousins in the near future!