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Underground stamp
| Underground (stamp) | |
|---|---|
| |
| Information | |
| Available | ? |
| Type | Activity |
| Difficulty | Easy |
| Members only? | ? |
| Stamp ID | ? |
| How to obtain | Find the secret entrance to the underground |
The Underground is a stamp in Club Penguin. To earn this stamp you must go to the Plaza and waddle over to the manhole and go down. Once you are down in the Cave you have earned the Underground (Stamp).