Antarctica is the continent of the South Pole.
The New Scooby-Doo Mysteries
The Scooby-Doo Detective Agency investigated a Mad Sea Lion there. (South Pole Vault)
What's New, Scooby-Doo?
The gang investigated an apparent murder by the Fish Fiend while on a trip to return a penguin to its natural habitat. (Uncle Scooby and Antarctica)