Unique, interesting or unusual ways to get fit?

I find it extremely difficult to motivate myself to go jogging. In fact, motivation for any sort of fitness-related exertion is nigh on impossible to muster. Before you jump down my throat with unhelpful comments related to bone-idleness and such, may I add that there is a genuine underlying medical reason for this. I’d rather go to the dentist AND watch paint dry than pound the pavement and so I am on a mission to uncover something a little more inspiring.