In reply to Andy Gamisou:
I have one set up in the garden, allegedly bought for my son and his friends. Its fun but not sure if it helps with climbing, I sometimes take it with me on a bike ride through the woods, set it up and have a go, more as an excuse to just sit and enjoy the scenery. Throwing axes and juggling are also a bit of fun, not sure I'd combine them at my level though.
The world seems to have forgotten about fun recently.
Rant warning -
Why is everything "training" these days, most of my colleagues at work are "training" all the time, but never seem to compete at anything, other than bragging about the amount of hours spent in the gym or miles run/cycled.
Rant over and breathe