Four meet-up times have been released for Rockhopper’s visits during the Submarine Party! These are times where he’s guaranteed to be online, though it’s very likely that the rooms will be super crowded for these visits. You can find all the details for these visits, including a countdown to them, directly on the Rockhopper tracker itself!
It’s worth stressing that there will still be some spontaneous meet-ups which aren’t on the scheduled list. This may be ideal for a lot of people, especially due to how crowded planned meet-ups can be, and the tracker should still detect them. The background which he’s offering also won’t return after the Submarine Party ends, so you’ll definitely want to try and meet him!
Good luck meeting him!