The Underwater Expedition was a party in Club Penguin. It was first seen in a sneak peek provided by Billybob. Rookie made an appearance in this party because of an EPF Spy Phone message saying he had ideas for it. Also, a news article showed a green penguin wearing Red Sunglasses and a Fish Costume. Since the Town was tilted to the left, a quarter of the Beach and half of the Ski Village were submerged underwater. EPF agents were notified via spy phone to help the citizens of Club Penguin. "Bubble shields" were noted to be placed over the Everyday Phoning Facility, the Ski Lodge, and over the stage inside of the Lighthouse. The bubble shields were being utilized in an effort to prevent water from entering these places.