A National Geographic Emerging Explorer, professor Constanza Ceruti specializes in excavating Inca Empire ceremonial centers on the summits of sacred Andean mountains. Constanza's most impressive find took place on a 22,100-foot summit, where the expedition she co-led unearthed the three best-preserved mummies ever discovered. Constanza will accompany the expedition shown below.

Kitty Coley is a geologist, naturalist, and avid birder who serves as a consultant to National Geographic magazine for articles related to her expertise and has led expeditions for National Geographic for over 8 years. She worked as a geologist for 15 years before becoming involved full-time in expedition travel. Through her work, she has spent extensive time in remote rain forests and rugged geologic settings around the world. Her love of nature has led to exploration through scuba diving, backpacking, white-water and sea kayaking, and biking. Kitty shares her in-depth knowledge about the fascinating aspects of the geology, flora, and fauna in a very interactive way. Kitty will accompany the expeditions shown below.

Writer Gregory Crouch is the author of Enduring Patagonia, an account of his mountaineering expeditions and horizontal explorations in the beautiful mountains of Patagonia. An accomplished climber, Crouch has written for National Geographic magazine describing his experience on the first-ever winter ascent of Cerro Torre's remote and mysterious west face. Greg also serves as field director for Conservacion Patagonica, a nonprofit organization dedicated to large-scale land conservation and national park creation in Patagonia. Gregory will accompany the expedition shown below.

Marine biologist Sylvia Earle is an Explorer-in-Residence at the National Geographic Society. Named one of Time magazine's "Heroes for the Planet" in 1998, Sylvia has pioneered research on marine ecosystems. Former chief scientist for the National Oceanic and Atmospheric Administration, she is the author of over 125 scientific and popular publications. Sylvia most recently worked as director of Sustainable Seas Expeditions project. Sylvia will accompany the expedition shown below.