Share 'Parkour Parks'

We have been talking quite a bit about this (AeroSF/Ryan and I had a looong thread going on artificial and/or portable obstacles in "another" forum...) and with the opportunity of this posting of mine on PKNA, I would like to re-gather all information in one thread, and getting the discussion going again. I've dug out all the info for which we can claim some sort of intellectual property... lol.…