Kennedy joins Kathryn from the Southern Ocean - he's midway through a National Geographic expedition cruise, taking a loop from Ushuaia to Falkland Islands to South Georgia to Antarctic Peninsula and back to Ushuaia.
He'll talk about what he saw on the Falklands, but mostly about South Georgia, where the beaches are packed with fur seals, elephant seals and penguins coming and going from sea.
On the hillsides, albatrosses nest and penguins create their colonies. The island is rich in history, too.
He visited Shackleton's grave in Gryvitken and wandered around the rusting machinery, tanks and paraphernalia of the abandoned whaling station.
