Right, I talked about this below, but really the main thing is just knowing the which of the 16 labeled directions the wind is coming from, and then checking ba

Right, I talked about this below, but really the main thing is just knowing the which of the 16 labeled directions the wind is coming from, and then checking back every few holes if possible, and then make arrows on the course map with that overall direction. And yes, trees and hills totally have an impact, but the main impact is the difficulty of having a very in tune knowledge of where the wind above the trees and hills is blowing. If you're hitting a normal full shot, the ball flight will be (usually) only affected by the standard wind direction. Again of course, there are gusts that make that difficult to time a shot, and ball flight and shot type make a difference as well, but knowing and trusting the overall direction would be really helpful.