Underground stamp

Underground
Information
Available	Yes
Type	Activities
Difficulty	Easy
Members only?	No
Stamp ID	10
How to obtain	Find the secret entrance to the underground

The Underground stamp is a stamp in Club Penguin. All players are able to obtain this stamp. It features an orange penguin looking down into a hole.

History

This stamp was released on July 26, 2010 as one of the original 107 stamps.

How to obtain this stamp

Spoiler warning: Plot and/or ending details follow. Click “Expand” to view spoilers.
Go to the Plaza. Head down the manhole to go to the Cave.
Spoilers end here.

SWF

• Underground stamp