The most striking thing about Royal Melbourne (and all of the sand belt courses) is the conditioning. You'll see balls bounce when they hit the green, instead of grabbing. And there is never a cut of grass to stop the ball from going off the fairway or green and into trouble.
So, it matters what angle you are approaching the green from, and what the through-line is. There are several fairly short par-4's where you could get up pretty close to the green, but the angles dictate that you want to be coming in from far-left pin high or far-right, instead of right in front.
You'll also notice that the greenside bunker shots are not the easy up-and-downs that they are from our perfectly manicured cat boxes in America. The sand is different, and it takes some getting used to.