No. 17, 628 yards
If you haven’t previously suffered a bout of vertigo on this windswept links etched across a peninsula 300 feet above the sea at Ireland’s southern tip, No. 17 may be the hole that gets you. At about 175 yards from the green, the right side of the fairway drops precipitously down a rocky cliff to the foaming sea far below. The green itself, while shored up on the right, is pushed to the brink of the bluff. The Old Head’s fiercest hole is both a dizzying prospect and every slicer’s nightmare.