As a spin-off from the "Most Unusual Looking First Three Holes" thread, it should be mentioned that the first three holes of NGLA have a number of totally blind bunkers that can really get your attention the first time you get in one of them.
The nest of bunkers at the inside of the dogleg (which itself is blind) on NGLA's 1st hole certainly get the attention of a player who is trying to play conservative on the tee shot. The opening hole turns a lot more sharply at the base of the hill than most anyone is aware of when you play the course the first few times. Obviously, the reason is you can see any part of that "turn" from the tee.
I've always played the tee shot on #1 with an iron, never a driver, and a number of times those tee shot irons looked really good in the air and on a great line. When I got down there too many times I found my tee shot in one of those totally blind bunkers on the inside of the dogleg at the base of the hill.
After that I always tried to hit those tee shot irons way out to the right with a draw (it seems like I was aiming in the direction of the second green). When I did that correctly I'd always find my ball in the middle of the fairway in the ideal position. Nevertheless that line and tee shot with an iron is so deceptive vis-a-vis the proper direction. It always seemed to me when I hit those tee shot irons in the middle of the fairway that the ball should be way out to the right in the rough when I got down there.
Those bunkers on the left are totally blind but I think they're great. Would today's golfers completely object if a modern architect did that?
And then there was the old blind bunker way over the hill on the right on #2.
The most extraordinary and effective blind bunker on those first three holes, though, has to be the one not that far from the front of the 3rd green over the "Alps" hill.
It seems to have become taboo to use totally blind bunkers shortly after the creation of NGLA.
Merion and its philosophy on bunkering may've been one of the reasons for that. The likes of Wilson and Flynn proclaimed, even in writing, that bunkers should not be blind.
Nevertheless, those blind bunkers on the first three holes of NGLA remain some of the most effective psychological hazards I'm aware of.