This article or section is mostly composed of rumours. As such, none of the data in this article may be true.
|Where||Underneath Rockhopper Island, also on top of Underwater Room|
|Opened||When Rockhopper First Visited|
Rockhopper Cave is a cave in which Rockhopper stores his treasure. The cave is partially connected to a volcanic mountain in Rockhopper Island. This proves that Rockhopper Island is both a tropical and a volcanic island.
- It's only ever been mentioned in Christmas on Rockhopper Island.
- It's location is Rockhopper Island.
- There is another rumor that there's a passage leading from the Rockhopper Cave to the game Cart Surfer at the Mine in Club Penguin.
- It could be a lava tube in the past, as there are streams of lava inside.