Ed, no, not exactly.
There is fairway short of that bunker -- it's 230 yards to reach the bunker at its nearest point (right-edge of bunker) and probably 250 at its farthest point. But, because of the way the fairway rises, then dips short of the bunker, it looks the bunker is much, much closer to the tee and the play is to go around it to the right (in fact, the fourth hole looked very similar to this one, but there was no deception and the play was to go around the bunker).
I guess I should have asked for clarification on which trees you were asking about. The trees in the forefront of the picture are left of the bunker, but they are also well short of it and can easily be carried. The trees immediately next to the bunker are actually on another hole.
If I had known that this was a trick bunker I would have taken more pictures, but I guess part of the trick is that you don't know it's a trick until you've been tricked!
As an aside, there was lots of visual deception with the bunkering at JacaW. Fairway bunkers sometimes turned out to be centreline bunkers. Greenside bunkers turned out to be 20-30 yards short of the green. Weed did some pretty interesting things with this completely flat layout -- enough so that I would now go out of my way to see some of his other work.