Kate Middleton has a full schedule with her three children and royal duties to attend to, but she's already proven in the past that she's not afraid to work up a sweat. Kate's been active since St. Andrew's school, where she played tennis and swam, and her sporty days haven't stopped since she became a duchess. Earlier this year, she showed off her athletic abilities during her surprise trip to Belfast when she was spotted playing soccer with kids. And just this week, the Duke and Duchess of Cambridge managed to squeeze in game of cricket during their royal tour of Pakistan. Keep reading to see some of her most active moments ahead.