Santiago lived in Antarctica for more than 28 months (at Esperanza Station in the Antarctic Peninsula, and at Carlini Base, formerly known as Jubany Station, on King George Island), working as a marine biologist in the field of coastal ecology for the Instituto Antártico Argentino. For the last 16 years, he has been guiding natural history and birding trips through the main natural areas of Argentina and central and southern Chile. Since 1999, he has written and published 8 natural history handbooks of the main areas he has visited. January 2007 was Santiago’s first season with Quark Expeditions, and since then he has returned every summer to Antarctica. He calls Buenos Aires, Argentina, home, where he lives with his wife and 2 children.