|Island Adventure Party 2010|
|When||June 17–27, 2010|
Treasure Cove Background,
Rockhopper Background (only if you meet him)
|Location||Club Penguin Island|
The Island Adventure Party 2010 was a party in Club Penguin that was built upon the Adventure Party. There was a mermaid cove area, a ship battle room, and a treefort. The free item was the Pirate Bandanna. Rockhopper and Yarr also returned to Club Penguin on June 21 and there was a scavenger hunt. It started on June 17, 2010, and ended on June 27, 2010.
|Treasure Cove Background||Finishing the Paper Boat Hunt||No|
|Marooned Outfit||Tree Forts||Yes|
|Rockhopper Background||Meeting Rockhopper||No|
|The Squid Lid||Rockhopper's Rare Items||No|
- At the Iceberg, a Giant Squid passed every 15–20 minutes. During its appearance, it looped around the iceberg before vanishing.
- This was the first party to have the Hidden Lake decorated.
- Despite being called "Mermaid Cove" for the party, the name for the room did not officially change.
- During the party, there was a boulder in the Forest leading to the Hidden Lake. After the party, Club Penguin decided to keep it permanently.
- This party had the rare moment of Rockhopper arriving midway through a party.