I've set this as a challenge to all those high D and T fanatics for a bit of a challenge. I don't care how you do it, but you may need special tools (a friend, a rope, a ladder, a skyhook?). Whatever solution you choose please cache safe and think about how you'll RAF as that part might be harder unless you think ahead.
Note for FTFers - treat the D/T rating as beta for now - I'm open to suggstions and will adjust based on feedback. It could be high, it could be low, it depends on how you do it.
This cache is placed to be found, I don't mind how much detail you put in your find log. You don't need to worry about giving away any spoilers, I think it will be more interesting to see what techniques different cachers use to sign the log.
Attributes tree climbing and teamwork required could apply to but two access methods, but don't have to so I've not selected them.