A source said: “The tennis court at Anmer has been the scene of many hard-fought matches, singles and doubles.”
Swimming is also on the cards too: “She and Pippa enjoy strenuous make-up-free aqua aerobic sessions and larky water polo with William and Harry.”
Kate is also a fan of a another exercise that is famous for creating a flat stomach – the plank.
The Daily Mail reported: “It tightens her muscles.
“There are three elements, the basic plank, the side plank and the prone sky dive, all of which are positions Kate can hold for 45 seconds or longer and repeat at least ten times each.”
What is Kate Middleton’s diet, also likely key to her lithe figure?
The Duchess often cooks at home, including making curries at home.
Curries can be great for weight loss, as chilli contains and compound that speeds up the metabolism.
Her breakfast routine is said to include a daily smoothie, full of vitamins.
Apparently, Kate’s smoothie of choice is spirulina, kale, matcha, spinach, romaine, cilantro and blueberries.
For lunches she is reported to enjoy salads.
Kate is also said to snack on goji berries, which have been lauded for their skin-boosting properties.