Underground Pool

The Cave (also reffered to as the Pool), is a secret area under the Plaza. It can be accessed from a green door in the Boiler Room, a manhole in the Plaza, or from the Mine. The Cave has a swimming pool in it which was features in the Penguin Games.

History
The Cave used to be an empty room under Club Penguin. It opened in May 2006 when the Underground opened.

Pin
There has been a pin there five times. One time a pin was on the lifeguard's chair, another was a teddy bear pin and it was in the center of the pool, and during the 2007 Halloween party, a spider pin would come down from the ceiling on a web, another one was an Aqua Grabber pin and it was above the lifeguard's chair and the fifth time there had been a Treble Clef.

Trivia

 * Originally there was a sign that said "NO LIFEGUARD ON DUTY." Then, at the 2007 Summer Kickoff Party,a lifeguard chair was put there. When the party was over the sign was removed, but the chair remained.


 * When the storm was nearing Club Penguin Island, the glass was broken by a crab and had a leak. Despite repairs to fix the broken window, the Underground was closed during the 2007 Waddle On Water Party due to flooding. It is now up and running again.


 * Creatures featured in Ice Fishing swim by. You can see them through the windows.

Parties

 * The water in the pool was replaced with slime during the 2007 Halloween Party.


 * During the 2007 Easter Egg Hunt, an Easter Egg could be found floating by.


 * During the 2008 Medieval Party, the Cave was transformed into a treasure hold full of gold coins which the dragon in the Mine was guarding.


 * During the 2008 Water Party there was a demonstration about how the glass was broken in the 2007 Water Party. In the background of the window there was gears operating the device.


 * During the 2008 Music Jam, there was a Floor Piano 3000. Whenever a Penguin stood on a key, that key played.


 * During the Penguin Games players had to complete 6 laps in the pool as one of the three tasks required to get a gold medal.