I like these particular trees. They are very well placed, forcing long hitters to challenge the shoreline if they want to go for the green in two. However, sicne there are only two of them, it is possible for a player to be faced with a number of different recovery shots depending on how close they are to the trees and what angles are still open. Yesterday, Davis Love had no real shot at the lay up zone, so he played a 3 wood out over the rocks that cut back to the fairway just short of the green. Not a comfortable shot - a good test for an elite player proving his mettle in competition.
Generally, forests present one dimentional recovery prospects, but this small cluster works well, IMHO.
Bunkers would work as well if designed properly, but if they're made too deep and steep, recovery becomes one dimensional yet again.