Rockhopper Island is the place where Rockhopper and Yarr live. It is known to be sandy, and filled with red puffles. There is a huge cave where RH stores his treasures. It is rumored to be a new room. This island is VERY far away from CP Island. You need to cross several islands to get there, mentioned by Rockhopper's Journal. Many penguin thought that it was going to be a new room during the RH quest, but it was proved false. The CP team and the CP times denied it. There's a cave, a beach, a jungle, a pool with a tiki entrance and other unknown places.