Heron Lakes Great Blue in Portland (two courses at Heron Lakes, the other one is Greenback). you have to catch it when conditions are right and it's not soggy, somewhere around late June/early July thru late September, but it's a great play.
three of the par 5s have water in play around the green, two of the par 3s are over water and another (11) might be the hardest tee shot on the course.