Super Cecil
Difference is that Willy is military, and they are able to close down all the airspace if they so desire. Also the runway is much closer to the coastal lane than in Sydney, and the approach path passes almost straight through it (at least thats how I remember it being, been a long time)
Also, there IS a Victor 1 style route through Willy airspace, no clearance required. Starts at Maitland, ends up just west of Taree. If anyone was concerned about holding, why not just use the inland lane and stay OCTA?
Yarr