Unknown Island

Unknown Island is the island Johnny was stuck on.

The Mega Snowball Fight
Johnny was trying to get a wig on the dock when some snowballs hit the dock making Johnny unable to come back. Johnny found a boat and rode it to Club Penguin. However, it exploded, sending Johnny to Unknown Island. Thanks to Shy Guy, he has a webcam to communicate. However, he was rescued a chapter later after Chill and friends hijacked the Migrator.