Its ocean-side dunes are mostly covered with turfgrass and mature trees now, but when Robert Trent Jones built The Dunes back in the late 1940s, the property was primarily windswept sand dotted with lagoons. Those lakes come in prominently on many holes, particularly on the 11th through 13th, dubbed Alligator Alley. (The boomerang-shaped par-5 13th is called Waterloo.) The home hole, with a pond in front of the green, started as a gambling par 5 but today is a daunting par 4. The course has hosted three USGA championships, including the 1962 U.S. Women's Open and most recently, the 2017 U.S. Women's Amateur Four-Ball.