This might be the most useless sign in the history of golf course signs
Coober Pedy Golf Course's claim to fame is that it's the only golf club in the world to offer reciprocal playing rights to St. Andrews. The Australian course is also one of the few grassless around, which, since it was created in 1975, has helped earned it a kind of cult following.
In any case, its grassless-ness renders signs like this pretty useless, but at least they have a sense of humor about it. Thanks to Reddit user skaschmidt for the picture.