If you’re visiting a country that doesn’t have enough grass to sustain pissing on a tree, you’re going to the wrong places for golf.
I’m not sure I understand? Did you mean county?
It sounds like this course is located at a natural oasis fed by a natural spring. If the course wasn’t there the water would probably feed some plant life and a bit of wildlife. With proper management it’s likely that their water use is more efficient than it would have been naturally. It isn’t unusual for resource aware golf courses to actually improve biodiversity in a region while being water consumption neutral.