Expedition Team

Our team is the key to your incredible adventure


Explore the islands and undersea in the company of top experts. Benefit from the knowledge of our Galápagos Island travel guides —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 enjoy their company; you’ll find them highly engaging and fun to share a drink or dinner with, as well as a trail hike.


Meet the expedition team for this departure

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  • Carlos Romero

    Expedition Leader
    Carlos was born in Quito, Ecuador and grew up in Venezuela, where he lived for many years near the ocean and later the rainforest. He returned to Quito to study biology and specialized in the fauna of Ecuador. His main field of study was zoology with an emphasis on vertebrates. He has a doctorate in biology and a master’s in ecotourism and natural protected areas management. He designed a new curriculum for the largest university in Ecuador, the Central University— a masters in environmental management and administration of natural protected areas. Carlos has also taken part in various scientific projects and expeditions with the Biological Sciences Department of Quito’s Polytechnic University. He has published several scientific papers, including one about the bats of Galápagos and one about the vampire bat of mainland Ecuador.

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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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  • Christian Saa

    Naturalist/Certified Photo Instructor
    Christian was born on the island of Isabela in the Galápagos archipelago. He grew up on a farm and had a magical childhood devoid of cars, electricity, telephones—just pure nature and playful sea lions along the beach. At the age of seven, he moved with his family to Santa Cruz Island, the economic hub of the Galápagos Islands. His father began to work in tourism and took Christian around the islands during school vacations. It was during this time that Christian learned to love and understand the real value of this unique archipelago, and he decided to devote his life to its stewardship. A lifelong passion for nature and its creatures took root in his heart, and he eventually decided to become a naturalist, which he has now been doing for 18 years now.

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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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  • Lenin Villacis

    Naturalist
    Lenin was born in the capital city of Quito, where he grew up surrounded by the mountains and volcanoes of the Andean region of Ecuador. At age 17, he received a scholarship to study in Mexico, and a few years later traveled to the U.S. and finished college with a degree in Earth sciences. 

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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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  • Ximena Cordova

    Naturalist
    Ximena was born in Cuenca, the third largest city of Ecuador. Located in the Andes Mountains, Cuenca is known as the cultural capital of Ecuador and is listed as a UNESCO World Heritage Trust site because of its many historical buildings. Ximena gained experience with American culture as an exchange student in Santa Barbara, CA, and later, while living and working at the United Nations in New York City for four and a half years.

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