I started working on a way to track Rockopper, and the only accurate way is to use a chat, and have people in all servers. I have made a chat just for this. Go to the chat here.
Tips for Finding Rockhopper
Try his favorite servers: Frozen, Mammoth, Sleet, and Blizzard
Once in those servers try his favorite rooms: His Ship, the Dock, the Beach, the Pizza Parlor, and the Iceberg.
Rockhopper Tracker
I have also made a Rockhopper Tracker now. It will not tell you where exactly he is. It won’t because to be honest I am not sure how to do that. It is in my sidebar under Chrisdog’s Tracker. I have also found one that is 100% accurate to finding Rockhopper. And that is this one: