Expedition Team Directory

The key to your experience in the planet’s capitals of wildness and culture

Passionate about the geographies they explore (and return to regularly), our expedition teams illuminate each facet through their enthusiasm and knowledge. They are the ones who write the books, they are the locals; they are the experts that knowledgeable explorers want to travel with again and again. They are the best in their fields. Meet them and see why our staff inspires such passion.

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  • Aaron Raymond

    Naturalist/Certified Photo Instructor
    R. Aaron Raymond started his career as an underwater photographer, which blossomed from his love of the ocean. He grew up on a sailboat diving for abalone off the coast of California. He loves to photograph landscapes, nature, and wildlife—anything that allows him to capture fleeting moments and showcase the interaction of light and the natural world. Aaron has photographed life on all sides of the planet, from the depths of Madagascar’s oceans to the heights of the Himalayas, which he crested at 18,500 feet via motorcycle. 

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  • Acacia Johnson

    National Geographic Photographer
    Acacia Johnson is a photographer, artist, and writer from Alaska, focused on human relationships to the Earth's polar regions. A graduate of the Rhode Island School of Design, Acacia received a Fulbright grant to Canada in 2014, to spend a winter documenting the Inuit’s evolving relationship with their environment on Baffin Island. Since then, she has been increasingly interested in anthropological themes in the Arctic and Antarctica. Johnson’s work has been featured by numerous publications, including digital stories for National Geographic about the Inuit community on Baffin Island, snow algae and sea ice in polar environments, and wildlife on Antarctica’s Deception Island caldera. Acacia has made over 55 expeditions to the polar regions—Greenland, Svalbard, the Canadian Arctic, and Antarctica—frequently lecturing on photography, Arctic indigenous culture, and visual representations of these unique regions. Most recently, Johnson returned to Baffin Island for two months in 2018 for her project Sea Ice Stories.

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  • Adrian Cerda

    Naturalist
    Adrian studied biology at the national Autonomous University of Mexico. In 1991 the Wildlife Preservation Trust of Jersey, on Britain's Channel Islands, awarded Adrian with a scholarship to its prestigious 16-week training program in Captive Management and Breeding of Endangered Species. This pioneering course of study is responsible for the conservation and rescue of countless species on the verge of disappearance. While there, Adrian also received a six month diploma in endangered species management.

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  • Adrienne Bosworth

    Assistant Expedition Leader
    Adrienne’s favorite things are rain and smoothly constructed sentences. Most days, she’d choose a rocky beach over a sandy one, and if possible would survive happily on smoked salmon. For most of her adult life Adrienne has worked on Expedition ships in some capacity, and she finds distinct satisfaction in wrangling logistics both onboard and ashore. Waking up to whales, sea birds, and remote coastlines allows for inarguably the best commute, and the best office.

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  • Africa Berdonces

    Naturalist
    Africa grew up in the Galápagos Islands where she spent her childhood exploring with her family, surrounded by exquisite nature. She took her first scuba diving lesson with her father off the coast of Sombrero Chino Island when she was just 12 years old. That first dive opened up a new and unexplored part of the natural world to her. Africa became enchanted by local marine life and went on to become a divemaster, working as both a dive guide and naturalist in her beloved islands.

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  • Alberto Montaudon

    Naturalist/Certified Photo Instructor
    Alberto fell in love with nature as a young child. Born and raised in Tampico, Tamaulipas, Mexico, he spent most of his childhood exploring the Chairlel Lagoon and the Tamesi River. Each morning he would patiently wait in his rowboat for sunrise to witness the great groups of migrating birds that would land on the water. His father taught him from a very early age to understand, love, and respect nature. As a result of his upbringing, Alberto became biologist and decided to follow his passion and became a naturalist. At age 21, Alberto began working with Lindblad Expeditions-National Geographic in Baja California. Since then he has been sharing interests that range from bird biology to undersea exploration to wildlife photography with thousands of guests.

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  • Alex Krowiak

    Naturalist/Certified Photo Instructor
    A childhood surrounded by the woods and streams of Pennsylvania initially sparked Alex’s curiosity about nature. That curiosity eventually led him to pursue degrees in biology and environmental studies at Boston College. During his time there he conducted research on carnivorous plants in Iceland and kelp forests in South Africa. Together these diverse experiences provided him with the background and passion to become a teacher. 

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  • Alex Searle

    Naturalist
    Born in Chile and raised in Argentina, Alex spent his childhood living in different parts of these countries and getting to know the local cultures.

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  • Alexandra Van Nostrand

    Assistant Expedition Leader
    Alexandra is happiest when chasing waterfalls, exploring wilderness, or reveling in a good story. Her travels have brought her from Asia, to Central and South America, the Pacific Islands, across the United States and up to Alaska.  She is fascinated by ice in all its forms and loves to revel in the vastness of the polar regions and is thrilled to take her adventures to the sea after many years of hoofing it across various continents.

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  • Alexandra Widman

    Naturalist
    Alexandra grew up on the southeast coast of the United States. She has a deep love for the ocean that stems from her childhood spent surfing, kayaking, diving and fishing on the Intracoastal Waterway. Alexandra has lived on San Cristóbal Island for the past 6 years, having fallen in love with Galápagos the moment she arrived as a fledgling marine ecologist. She holds a bachelor’s degree in marine biology and a master’s in environmental science and management from the University of California Santa Barbara.

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