Expedition Team

Our superb team is key to the quality of your experience


Our unparalleled team of Antarctica travel guides assure you an engaging, in-depth experience, and our generous staff-to-guest ratio of 1:10 means more choice in activities, and more diverse personalities and interests you can gravitate to. An expedition leader, eight naturalists/historians, a National Geographic photographer, a Lindblad-National Geographic certified photo instructor, undersea specialist, video chronicler and a wellness specialist all contribute to your experience of the wonders.


Meet the expedition team for this departure

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  • Alyssa Adler

    Undersea Specialist
    As a young marine biologist, Alyssa Adler has had the opportunity to work as a diver in many capacities. For several years, she was a dedicated AAUS scientific diver for University of North Carolina on an offshore reef ecology project, and has participated in several of NOAA’s reef survey missions. She has been diving with National Geographic and Lindblad Expeditions as an underwater videographer and ocean educator since 2014 and has fostered a love for the poles and extreme cold-water diving, spending most of her time underwater in sub-freezing temperatures.

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  • Andreas Madsen

    Naturalist
    Andreas was born in the village of Ebeltoft on the central east coast of Denmark and has spent his childhood years with the sea and open fields as neighbours. For a child of the North, fishing, bicycling, skiing, and hiking come along with your first steps and nature has always had a self-explanatory role in Andreas’ life. Between studies he left Denmark to travel and it was during his months in South America he discovered his curiosity and interest for geology. 

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  • Dan Westergren

    National Geographic Photographer
    Dan Westergren has spent three decades producing award-winning images as a National Geographic Society photographer, photo editor, and social media strategist. Years after being introduced to the camera by an indulgent eighth-grade science teacher, Westergren became Director of Photography at National Geographic Traveler, where he developed a photographic aesthetic that has defined the magazine’s visual impact in print, digital, and social media.

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  • Doug Gould

    Naturalist
    Travel and adventure were an integral part of Doug’s upbringing in a small town on the south shore of Long Island, New York. Growing up on the Great South Bay, his family claims Doug learned to sail before he learned to walk. Whether it was camping, sailing, birding, traveling across country or spending most of fifth grade living in Europe, Doug’s formative years left him with a love of wildlife, the outdoors, and a desire to keep moving. 

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  • Leah Eaton

    Assistant Expedition Leader
    Leah grew up in a small coastal town in the Pacific Northwest with Olympic National Park in her backyard, and it was here where her love of all things wild began. Ever since she ran around shipyards at an early age and watched her dad work in the marine trade, she has loved being near water.

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  • Madalena Patacho

    Naturalist
    Madalena was born and raised in Portugal. Her childhood was spent in Belem, surrounded by Portuguese maritime monuments and history, always dreaming about exploring the oceans. Her love for nature has led her to study biology and later a Master’s in management of natural resources, specialized in ecotourism. She has lived on Príncipe Island, off the west coast of Africa, working with local communities on a responsible tourism project. She is inspired by the principles of ecotourism and is always looking for the best ways to contribute and leave a positive footprint everywhere.

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  • Matthew Ritenour

    Video Chronicler
    Matthew grew up on the Gulf of Mexico, where a love of geography, culture and history were instilled at a young age. He studied anthropology at California State University, Chico, and soon began working at the Advanced Laboratory for Visual Anthropology (ALVA), a documentary production studio that focuses on sharing the results of anthropological research with the public. As a cinematographer and editor at ALVA, he documented research on everything from the effects of drought in California, to looted petroglyphs in the Sierra Nevada high desert, and the global trade in emeralds.

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  • Mike Greenfelder

    Naturalist
    Mike learned early on that the best way to escape Ohio was to become a marine biologist.  During college at Wittenberg University he attended a semester at Duke University's Marine Lab — that time only confirmed his love for all things oceanic and maritime.  After graduation, Mike promptly moved to Catalina Island in California where he taught marine biology to school kids.  Since 1999, Mike has been working and traveling chasing his three loves: marine critters, photography, and birds.

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  • Nathan Kelley

    Naturalist/Certified Photo Instructor
    Nathan grew up in the suburbs of Chicago, Illinois.  He developed his love for nature as a kid at his family’s cabin in Northern Wisconsin.  Family fishing trips, camping, hiking and a trip to his first National Park in the Everglades, all vigorously shaped his passion for the natural world.  After graduating with a degree in Cinema and Photography from Southern Illinois University in the heart of the Shawnee National Forest, he moved to Southern California to work as a camera operator and photographer in a wide range of projects including work for the National Geographic Society.  His photography has also been exhibited in galleries and in publications.

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