I know this is years later, but I still came upon it and found it helpful.
For my high schooler, we rotate things like Park Days, Walking, Bike Riding, Body Weight Exercises at home, and an actual P.E. Class once per week. He gets outside as much as possible on the good weather days. He also likes swimming and hiking but those aren't scheduled at the moment. I definitely have to remind him because it can be the first thing to get forgotten amongst the workload, and keeping an eye on the weather really helps him. he now thinks about if he wants to get out before it rains or gets hot, etc.
For my early elementary girls, they take a Swim Class, a P.E. Class, attend park days, and generally play outdoors daily either in our back yard or out front with the neighbor kids. If the weather is bad, we have some indoor things like stepping stones, a balance board, a gym quality play mat, etc, and they are just as active indoors.