Quote Originally Posted by Ekymus View Post
I'm sure. You can only register for the boat every two hours, the quest marker doesn't even show up to register more than that, and I've waited 20 and 30 minutes before and the instance never spawned.

Trust me, if I could do Ocean Fishing more, I would.
You literally can't wait 20 minutes for it. It's only available to queue for for 15 minutes. It will always force pop at x:15 and if you don't accept then you can't requeue because the NPC depops.