To the author, skydiving is covered under AT. Did the weeks skydiving at Netheravon last year, all paid for by the pusser. All i did have to pay was twenty odd quid for temporary membership of the BPA, for insurance purposes i believe. Although you're a frequent flyer by the looks of things and id imagine youd already be a member.
I did the novice course (static line, progressing to free-fall) although if you're more advanced there were opportunties to cater. All lifts and equipment was free. Good course and all the RN skydiving team is based out of Netheravon. One of my oppos off an old boat was on the RN four-way formation team and he was forever getting time off to throw himself out of a plane..