This article is about something that was for a period of time or is no longer in Club Penguin.
Underwater is a members-only room in Club Penguin. It opened on January 22nd, 2010 for the Cave Expedition, and was re-opened permanently on March 15th, 2010.
- The Moss Key Pin was available in this room, where a background used to be available during the Cave Expedition.
- The pin has mysteriously been removed sometime in 2013.
- Until 2014 there was no music, then sound effects were added to the rooms .swf file. However, in 2014 they were removed and replaced with new sound effects.
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