This one is a bit surprising but it certainly deserves noting.
Those frequent visits to your friendly course beer-cart girl can give your bladder a run for time. The longer you learn to hold it, the more you strengthen the capacity of your bladder. And, as noted by some women golfers, it’s also an effective way to strengthen leg muscles, especially in the quadriceps.
Those crouching maneuvers used by those who can’t “hold it” are a unique way of doing leg exercises.