Matt Drennan

Expedition Leader, Historian, Naturalist

Matt Drennan, EYOS Expeditions

Since 1987, Matt Drennan has traveled annually to the Falklands, South Georgia, and the Antarctic Peninsula, safely guiding thousands of people into the magical realm of ice, penguins, and wildly unpredictable conditions.


Matt’s passion is attempting to understand and explain the intricate ecological connections existing in the polar regions, and to bring guests the most exciting experience that is safely possible.

Expedition Experience

Over three decades he has also led or guided trips to the Ross Sea, Svalbard, Greenland, the Canadian Arctic, including five transits of the Northwest Passage, the Amazon, every island on the mid-Atlantic Ridge, the southwest Pacific, White Sea, Sea of Okhotsk, and Indonesia.

Antarctic Field Researcher

Matt’s Antarctic experience is not limited to acting as Expedition Leader or guide. He has also worked as a field researcher for the Antarctic Site Inventory, gathering baseline biological data at numerous sites along the Antarctic Peninsula. Matt authored the ‘Expedition Leader’s Perspective’ for the landmark 1997 Oceanites Site Guide to the Antarctic Peninsula.


A 1985 graduate of College of the Atlantic, in Bar Harbor, Maine, Matt spent much of the 1980’s studying the ecology of Maine’s seabirds, resulting in an intimate relationship with the eastern Maine archipelago. For 15 years, he was an adjunct instructor at the College of the Atlantic, teaching a field ornithology class each spring, as well as a survey course of the polar regions.

When not on expedition or watching seabirds on Maine islands, Matt operates a small construction business, specializing in logistically challenging projects on offshore islands—he and his colleagues recently completed major renovations to the lighthouse stations at Great Duck Island and Mt. Desert Rock, both now operated as research stations by College of the Atlantic.