* Snow. Antarctica is also covered in snow, which can fall at any time of year. The snow can be very deep in some areas, and it can be hard to walk through.
* Mountains. Antarctica has several mountain ranges, including the Transantarctic Mountains, which run across the continent from east to west. The highest mountain in Antarctica is Mount Vinson, which is 4,892 meters (16,050 feet) high.
* Valleys. Antarctica also has several valleys, including the Dry Valleys, which are some of the driest places on Earth. The Dry Valleys are home to a variety of unique plants and animals.
* Lakes. Antarctica has several lakes, including Lake Vostok, which is the largest lake in Antarctica. Lake Vostok is located under the ice sheet and is about 250 kilometers (155 miles) long and 50 kilometers (31 miles) wide.
* Rivers. Antarctica also has several rivers, including the Onyx River, which is the longest river in Antarctica. The Onyx River is about 30 kilometers (19 miles) long and flows into the Weddell Sea.
* Glaciers. Antarctica is home to many glaciers, including the Ross Ice Shelf, which is the largest ice shelf in the world. The Ross Ice Shelf is about 487,000 square kilometers (188,000 square miles) in size and is about 500 meters (1,640 feet) thick.
* Sea ice. Antarctica is surrounded by sea ice, which can extend for hundreds of kilometers. The sea ice can be very thick in some areas, and it can be hard to break through.
* Wildlife. Antarctica is home to a variety of wildlife, including penguins, seals, whales, and birds. The penguins are the most common animals in Antarctica, and there are about 18 different species of penguins that live on the continent.
