of the snowmobile. The idea was too big for the technical possibilities 100 years ago. At that time, every step meant incredible hardship. The first thing that caught my eye upon landing was the humongous bus and its driver. - We're clearing the apron now, thank you. Hey, you're welcome. This is Ivan the Terra Bus. It's one of seven in the world, weighs 67,000 pounds and is the largest vehicle on the continent. HERZOG. What do you do when you are back home? Are you a taxi driver? I am not a taxi driver at home. Before I came to Antarctica, I was actually a banker in Colorado. And after two years there, I changed my pace a little bit and decided to help the people of Guatemala, so I joined the Peace Corps, and there I worked in small business development. Just realized that the world's not all about money. Where I lived in Guatemala was in the northern part. It's a Kekchi Mayan village, 99% Mayan, and therefore nobody spoke Spanish. I had to learn the Mayan dialect, Kekchi. When I first moved to chisec, I was just out on a normal walk, and before I knew it I had six people with machetes chasing me down, wanting to talk to me. Turns out the little brother told them I was there to steal children. I was, however, not there to steal children. They took me back to my... My judge and jury was the 14-year-old boy