When you talk about the sport of golf, one thing should be very clear: The word golf is a noun; it's not a verb.
If you tell someone you're heading to the course this weekend, you can say something like, "Hey, I'm going to play golf this weekend."
But you can't say, "Hey, I'm going golfing this weekend."
There is no infinitive verb "to golf," meaning that you shouldn't use golf as a verb. Merriam-Webster will tell you that you can use "golf" as an intransitive verb, or that you can use "golfing" as a word. They're wrong. They're completely wrong.
Only use golf as a noun.