Yeh not sure what the deal is, just wait till you see that swamp area you pass through , they have dug out further/deeper on each side, and used this sand to built up the track even higher (over all those black pipes), so now its one lane for about a K with no safe passing or reversing, in fact, if you went off the track in this area and didn't crash, I doubt you would be able to get back up on the track easy (if at all).
At least you don't have to go far to get to the poverty camp grounds , remember the bug spray out there (lol), Australia Day is normally crazy busy on Bribie (as you probly already know), we have no plans yet and often go to Bribie on AU Day ,so may even end up there for the day myself !