This is pretty Cool, but members only :-(
Step one: Go to the "box Store" in snow forts.
Step Two: Click on the Box at the bottom-right corner to access the box catalog!
Step three: Buy the Portal Box.
Step four: Set up the portal in your igloo and wabble through it.
Step five: ENTER!
Here is a look for you non-members:
~Me12101 lime cheats president