Expedition Team

Our superb team is key to the quality of your experience


Our unparalleled expedition team assures you an engaging, in-depth experience, and our generous staff-to-guest ratio of 1:15 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, a Global Perspectives guest speaker, 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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  • Bud Lehnhausen

    Naturalist
    Bud received an undergraduate degree in wildlife biology at Colorado State University. He then immediately went to Alaska where he worked and lived for 30 years. At the University of Alaska, Fairbanks, Bud studied wildlife biology and received a master's degree conducting research on four species of alcid seabird nesting on a remote island in the Gulf of Alaska.

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  • Caitlyn Webster

    Naturalist/Expedition Diver
    Caitlyn grew up entranced by the sea. She first became SCUBA certified while in high school in southern California and found her true passion diving and studying marine life. After graduating from Cal Poly State University: San Luis Obispo with a degree in Biological Sciences and a concentration in Marine Science and Fisheries, she began her career in research diving operations and logistics. Through different universities and various opportunities, Caitlyn has been fortunate enough to travel to particularly remote parts of the world, sharing her enthusiasm for exploring the seas and marine conservation.

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  • David Cothran

    Naturalist/Certified Photo Instructor
    David has worked for Lindblad Expeditions-National Geographic since 1993 on six continents and in over 65 countries. David is interested in many of the natural sciences, particularly ornithology, geology and marine biology; he most enjoys contrasting the broad perspectives provided by world travel with detailed investigations of local ecosystems on land and in the sea.

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  • Dennis Cornejo

    Naturalist
    Dennis began scuba diving during the mid-1970s as part of a research project. At the time he was a research associate at the Arizona-Sonora Desert Museum in Tucson, Arizona, studying the population of winter hibernating sea turtles.  What began as a scientific study soon became a conservation project that expanded to three species of sea turtles along the entire Pacific coast of Mexico.  This project received major funding from the World Wildlife Fund and was eventually taken over directly by that agency with Kim Clifton and Dennis Cornejo as co-principal investigators.

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  • Doug Gualtieri

    Expedition Leader
    Doug’s passion for the natural world started at an early age in his home state of Michigan. He received two biology degrees from Central Michigan University, and later went on to get a master’s degree in conservation biology. His education led him to study a diverse range of natural sciences, with an emphasis on ecology, animal behavior, and migratory birds. Shortly after leaving the academic world, Doug migrated north to Alaska with his trusty Siberian husky, Koda. He began working as a naturalist in Denali National Park in 1999. For over seven years he has shared his love of Alaska and Denali’s six million acres with Lindblad Expeditions-National Geographic guests, as trip leader for the Denali Land Extension based at the North Face Lodge deep within the park.

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  • Edward Shaw

    Naturalist
    Edward Shaw has travelled widely as a naturalist and guide. For the past 18 years, Edward has lived in northwestern Patagonia initially working as a teacher and subsequently working in community projects. This remarkable region of South America is home to many incredible geologic features — fiords, glaciers, volcanos, and lake basins long ago excavated by ice-streams — unique flora and fauna, as well as the archaeological remains of pre-Columbian civilizations dating back to at least the 13th millennium BCE. He is deeply committed to the principles behind sustainable development and currently works for a local foundation.

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  • Elise Lockton

    Naturalist
    Elise’s passion for travel and interpretation is evident when you learn about the places she has chosen to live, work and travel. A degree in environmental studies introduced her to the world of interpreting nature, which has evolved into both a passion and profession.

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  • Gianluca Colla

    National Geographic Photographer
    Gianluca Colla has traveled and photographed around the world, from the Arctic Circle to Africa’s deserts and from the Amazon to the streets of London. He has covered a diverse range of topics including the secrets of the longest-living centenarians in the world, a lost Da Vinci painting, and hidden mummies in Sicilian crypts. His work has appeared in numerous publications, including National Geographic magazine, Condé Nast Traveler, Newsweek, the New York Times, and the Washington Post.

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  • Greg Marshall

    Global Perspectives Guest Speaker
    Greg Marshall is an inventor, biologist, conservationist, and Emmy Award-winning filmmaker who has dedicated his life to studying, exploring, and documenting animal life in the oceans and across the globe.

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  • James Coleman

    Naturalist
    Jamie is from England. He grew up in Oxford, about as far from the sea as you can get in the UK, yet somehow decided he would work in marine biology and conservation. Ever since he reached his teens, he has dedicated time to this passion, working and volunteering in various roles on nature reserves and in aquariums. It was no surprise that in 2007, he left home to study marine biology at the University of Newcastle.

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