Southern Ocean

Imagine being the coldest, windiest, and wildest water in the whole world. That’s me. I swirl and dance around a giant, frozen continent at the very bottom of the planet, a place so cold that my waves are often filled with giant chunks of ice. Some of these icebergs are as big as mountains, floating silently through my dark, chilly waters. My currents are strong and powerful, a wild rollercoaster for the brave creatures who call me home. Sleek leopard seals hunt in my depths, and enormous whales breach my surface, sending sprays of icy mist into the air. On the shores of the land I protect, millions of penguins waddle and slide, unafraid of my frosty embrace. For a very long time, I was a mystery, a powerful force that humans knew very little about. I am the guardian of the frozen south. I am the Southern Ocean.

For hundreds of years, people on ships looked at their maps and wondered what lay at the very bottom of the Earth. They told stories of a great southern land, but no one had ever seen it. In the 1770s, a brave captain named James Cook decided he would be the one to find out. He sailed his wooden ship right into my icy grip, farther south than anyone had gone before. He was the first to cross the invisible line called the Antarctic Circle, but the thick ice and freezing winds forced him to turn back. He proved that the south was a cold, isolated place, but he never saw the continent I was hiding. It took almost fifty more years for that to happen. In 1820, two Russian explorers, Thaddeus Bellingshausen and Mikhail Lazarev, sailed their ships carefully through my maze of ice. They pushed farther and farther south until one day, through the fog, they saw it: the towering ice cliffs of a new continent. They were among the very first people to lay eyes on Antarctica, the icy heart I protect so fiercely.

What makes me so different from other oceans. I have a superpower. It’s a mighty, swirling river that flows inside me, called the Antarctic Circumpolar Current. This current is so big and strong that it races all the way around Antarctica without ever being stopped by land. It’s the only current on Earth that can do that. Think of me as a giant blender for the planet. As my current flows, it grabs water from the Atlantic, the Pacific, and the Indian Oceans and mixes them all together. This giant swirl helps move heat around the globe, which controls the weather for everyone, even people living in warm, sunny places far away. This superpower connects me to the rest of the world and makes me one of the most important parts of our planet’s health. I work day and night, endlessly circling the bottom of the world, keeping everything in balance.

For a long time, mapmakers weren't sure what to call me. Some just saw me as the bottom parts of other oceans. But scientists knew I was special. They studied my unique currents and my incredible wildlife. Finally, on World Oceans Day, June 8th, 2021, the National Geographic Society officially put me on the map for good as the world’s fifth ocean. I was so proud. Today, scientists from many different countries visit me, not to conquer me, but to learn from me. They have a special promise called the Antarctic Treaty, which says that my waters and the land I guard will always be a place for peace and science. No one is allowed to fight here. Together, these people are working to understand how to protect me from climate change. I am a reminder that even the wildest places are precious, and by working together, we can keep the Earth healthy for everyone.