Is it something you reserve in advance before you even get on the ship, or do you make reservation on the ship at guest services, or do you just show up and hope it's available?
Thanks!
Just show up! It's on Deck 13 "Goofy's Sports Deck" and there's a barrel of clubs and balls there for you to just pick up and go at your own leisure. It's probably more crowded on Sea days, but nothing like waiting 20 minutes in line for a ride or something.