This week, we plunge into the frigid waters off the Antarctic Peninsula and recount some epic sightings, including watching humpback whales feed (from a nearby zodiac), a large pod of killer whales bow-riding the ship, and leopard seals hunting penguins.

Land ho! After crossing the Drake Passage, we finally reach the South Shetland Islands and all the amazing wildlife that calls it home. Jomi shares what it’s like going out on your first excursion (a zodiac cruise or landing) and some of the most memorable sightings he has had there. Think:...