- Not to be confused with the Portal Box.
Box Portals were used in both the April Fools Parties of 2007 and 2009, and in the Puffle Party 2011. If you walked to or over them, you would be teleported to a different room. The portals were made of boxes. You could tell where it would lead because an item from that place would be beside it (e.g. Coffee Shop's bean bag, Night Club's speaker, the Beacon's Jet Pack...). During the Puffle Party 2011, there was a portal box at the Beach which lead to the Box Dimension.
- For some reason, you cannot go into the same box portal twice while you're on.
- At the April Fools' Party 2010, if you went to a certain part of the Ski Lodge, you would be transported to the Lighthouse. Some think that the Club Penguin Team didn't take a portal out and left it invisible. This returned for the April Fools' Party 2011.