Expedition Team

Our team is the key to your incredible adventure


Explore in the company of top experts on a Galápagos and Peru adventure tour. Benefit from their knowledge—team specialties include marine and terrestrial biology, botany, geology, and more—and passion for the Galápagos to observe and understand more of all you’ll see. And explore Machu Picchu & the Land of the Inca with top guides. They are deeply knowledgeable about the history and culture of Peru. Above all, each is passionate about the wonders of the region and dedicated to helping you achieve the richest experience possible on your Galápagos expedition.


Meet the expedition team for this departure

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  • Celso Montalvo

    Naturalist
    Celso was born in Guayaquil, Ecuador. At the age of nine he arrived in the Galápagos for the first time and he was profoundly touched by nature, observation, and isolation.  When he saw the sharks, rays and turtles swimming in the bay, he was triggered by a sense of wonder that he did not feel before.  Celso believes education is key to preservation. After graduating from the Naval Academy at the age of 17 he moved to New York to continue his education.

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  • Jason Heilmann

    Undersea Specialist
    Growing up in northern California, Jason was surrounded by the incomparable nature of the Pacific Northwest. While attending university there, Jason met and eventually married an Ecuadorian woman who happened to be from a small group of islands off the coast of western South America. It was thus that Jason’s path led him to Ecuador and, in time, to one of the most revered natural environments on earth, the Galápagos Islands.

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  • Jonathan Aguas

    Naturalist/Certified Photo Instructor
    Jonathan was born into one of only a handful of families that reaches back five generations in Galápagos, in the town of Puerto Baquerizo Moreno, on San Cristobal Island. He first left the islands when he won a highly-coveted scholarship to finish his studies in the U.S.  This was the start of his life-long passion for science and languages.

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  • Juan Carlos Avila

    Naturalist/Certified Photo Instructor
    Juan Carlos was born in Quito, Ecuador. He spent part of his elementary schooling in the province of Cotopaxi, a beautiful area in the Ecuadorian Andes ringed by volcanoes. In 1989 his family moved to the Galápagos and settled in the highlands of Santa Cruz, the second largest island in this archipelago. It was here that Juan Carlos finished high school and gained his deep love for nature.

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  • Luis Vinueza

    Undersea Specialist
    Luis arrived in the Galápagos Islands for the first time when he was 11 years old in 1983, and from that time on he knew that Galápagos would one day be his home. He returned to the islands in 1995 and spent 14 months camping in a tent. Seven of those months were spent on Española Island, studying the relationship of reproductive success and mate retention of Nazca boobies. In 1997, he started working for the marine lab at the Charles Darwin Research Station (CDRS) on different fields including diving surveys to assess the patterns of marine biodiversity around the Galápagos Marine Reserve. His research included counting lobsters and sea cucumbers and participating as an advisor for CDRS during the negotiation process that led to the 1998 creation of the Galápagos Marine Reserve. 

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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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  • Paula Tagle

    Expedition Leader
    Paula grew up in Guayaquil where she obtained an undergraduate degree in geology from the Polytechnic University of Guayaquil. She enjoyed many field trips all around Ecuador and during her vacations traveled in Central and South America in the hope of learning more about her people and culture. The last year of her studies she worked at a mine looking for a more ecologically responsible way of recovering gold. Interested more in volcanoes than in raw materials, she came to Galápagos, a mecca for geologists, in 1992. She was bewitched by the other wonders of the islands and became a naturalist guide for the Galápagos National Park.

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  • Salvador Cazar

    Naturalist
    Salvador Cazar studied biology at the Universidad Nacional Del Sur, Bahía Blanca, in Argentina and at the Catholic University of Ecuador. Between 1988 and 1994, Salvador worked as a naturalist and tour leader for several national and international tour operators, leading groups of visitors across the Ecuadorian rain forest, Andean forest, and to Galápagos.

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