When you say 9 hole course, are you talking there are two distinct 9's, only one of which you like? Or are there only 9 good holes total? If it is the first instance what is lacking in the 9 you don't care for?
Ed,
Both. The front nine is the best, the back nine not much chop. I don't know I would want to play the back nine there again, to be honest. If I couldn't play the front nine twice, I wouldn't play the back. 3,4,5,6 and 8 are the best holes, along with the first, to some degree. 13 A is a good par three, but you have already done the stunning short iron par three at four, so all it really does is add 15 minutes to the round.
14 is a stunning hole, but they need to lose twenty yards of the marram on the hill to the right - with a standard four club breeze straight into you on the tee, it is pretty intimidating. 18 is a nice view, but the green feels similar to the 8th.
The back nine is played over much lesser land and just seems too low profile. 15 is a drop shot par three of great beauty, but all you have to do is calculate the drop and hit the green. A miss right is an easy up and down. Compared to the 5th at Dunes, a similar length drop shot par three with a much more interesting split level green where you have to calculate bounce and roll and have much more interesting recovery shots.
13 plays through a canyon of sorts. It doglegs left around an exposed dune, along a flat fairway, then plays to a flat fairway extension green. I like fairway extension greens, but there is no doubt about where this is back in the fairway. Given the incredible skill of the construction crew, they could have done anything here and made it fit.