Oxford Falls is a haven for mountain bike riders in sydney as locals build most days, even in weekdays, to get the place to look and fell awesome.
I may not be as much as a local as everyone else, but i have been to oxford both saturday and sunday for the past 2 weeks, and seeing as it is holdays will be heading up there quite a bit more. This basically means that i may be pickin up a shovel, to help the place progress. Everyone should be doing their bit when riding regularily to keep the place looking spic'n'span. Even if you just fix up a burm that has been shredded to helping one of the locals finish a downramp, your still helping out.
It is a great place to progress because as said earlier in the thread, their is more than just freeride, their are fast technical downhill sections, cross country, very flowy race style of tracks.
I do agree on the point that if the huge building continues, the place will be destroyed once again, but as also said, once you hit them, you will regret saying anything bad about the structures (don't know for a fact, although mates have hit basically everything there).
I ride their for fun, i may not be able to do 25ft gaps and 10ft drops, but i ride to my capability, and i am PROGRESSING because of this place.
In conclusion, a big shout out to the main builders at oxford, have really made a sydney riders mountain bike haven possible. My 2 cents.
Cheers, Tom.
P.S. The structure is bolted to the ground so it will not be easily removed when doing so.