Instead I go play ping-pong, or badminton, or beach volleyball (when in season) instead.

Ping-pong and volleyball basically don't count as exercise, they are just recreation. (Unless you are performing at an unrealistically high level of competition which for most intents and purposes is a completely different activity.) Badminton does count assuming you are trying. That is, not walking around tapping the little thingie at each other but actually pushing as hard as you can to make each shot.