Our journey to the far south reaches of the Antarctic Peninsula began today with a stop at the Fish Islands. We enjoyed Zodiac cruises in a garden of beautiful blue ice sculptures inhabited by Adélie penguins and several sleepy seals. Cruising into the wide waters of Crystal Sound, we crossed the Antarctic Circle in the late afternoon. The crossing is a significant milestone for polar explorers, and we celebrated with a champagne toast and some delicious teatime snacks. As a final treat for the day, we were lucky enough to encounter a group of large type A killer whales. Our skilled bridge team maneuvered the ship to get us excellent views of these lovely predators before we continued on our way, ever farther south.