Pumptracks for MTB tech training

Hi

Does anyone know where I can find these so-called ''pumptracks'' similar to the one in the picture beneath? Im located in Sydney Australia.

Looks like good fun to me and would be great for improving my MTB skills.



It is in Denmark btw, I somehow find it here http://www.dirtbuilders.com/#!Pumptrack-i-Nex-Pump-Track-in-Nex/c1ra6/439237B1-2E38-491B-907D-17F659B52242