Pat - not exactly what you were referencing, but the dry moat/potential recovery concept is exactly what I love about #10 at Creek. For those who are unfamiliar, the hole is right on the Long Island Sound, and has a diagonal stream running south of the fairway. Similar to a cape hole, the more you try to bite off on the tee shot, the more the water potentially comes into play. However, the difference in water between high tide and low tide is probably 5 feet. So when the tide is low, you can recover from the beach on all but the worst shots (similar to a dry moat). However, when the tide is high, anything short of the fairway is dead. It adds an interesting, unpredictable element of nature to the strategy of the hole.