Rockhopper would be on a random server. It's pretty rare to meet him as there are loads of servers. I met him but I have no tips. I was casually strolling along when someone said "QUICK ROCKHOPPER IS IN "THE NAME OF THE SERVER"! So i went there and there he was. Anyway he isn't in a specific server.
It may vary depending on when you check this.
rockhopper is a very famous penguin he is now on server breeze and place beach
No one really knows what server Rockhopper is on, because he is forever changing between them. I normally see him Adbominble.
abdominouble
he goes on frostey
he is not on
go on the same server as him
rockhopper will be on all servers. its like his ship is another room.
15 to 20 minutes
Rockhopper is currently offline. It is almost impossible to find Rockhopper by posting a new question about him as he changes locations every second. Its better to track him down by going server hopping with a few friends.
He goes on loads of severs. He goes on different ones every time.
You have to find him somewhere in clubpenguin to get his autograph. PS He is usally in the mammoth server.