Through a Naturalist’s Eyes · 3 min read · 21 October 2026

What a Level III Naturalist Guide Changes About Your Galápagos Voyage

Every visitor to the Galápagos National Park is accompanied by a licensed guide. Not every guide holds Level III. Here is what the difference means for your expedition.

Naturalist guide showing travelers a marine iguana

In the Galápagos, no visitor walks a trail alone. Every landing in the National Park is made in the company of a guide licensed by the Park, and that rule has done as much as any other to keep the islands as they are. But a license is a starting point, not a measure of depth. The guide beside you decides whether a landing is a walk past remarkable animals or the moment you finally understand them.

Three levels, one standard of excellence

The Galápagos National Park licenses its naturalist guides at three levels. Level III, the highest, is held by a small number of guides who combine long experience in the field, advanced training and mastery of the languages of their guests. It is the level the Park entrusts with the most demanding itineraries. Samuel and John, the founders of Galápagos Redefined, both hold it.

The title matters less than what it represents: decades of returning to the same colonies in every season, of watching how a species behaves before the rains and after them, of learning what a landscape says about the age of the lava beneath it.

Seeing is easy; understanding takes a lifetime

On a beach on Fernandina, any visitor will see marine iguanas. A great naturalist will show you why they lie flattened against the black rock in the morning and raised on their legs at noon, why the largest ones dive while the young graze between the tides, and why, during a strong El Niño, they can shrink their own skeleton to survive. The animal is the same. The encounter is not.

Close-up portrait of a marine iguana, an endemic Galápagos species
A marine iguana: easy to see, far more remarkable once you understand how it lives.

What changes during your voyage

Born here, not trained here

Some knowledge cannot be taught in a classroom. Samuel and John were born on San Cristóbal and grew up among sea lions and frigatebirds long before they guided their first visitors. That is the difference our guests most often describe after their voyage: the feeling of being shown the islands by people for whom they are home.

A Darwin's finch perched on volcanic rock in the Galápagos
A Darwin’s finch: a small brown bird, until a naturalist explains why it changed the history of science.

The same guides, whichever vessel you choose

Aboard La Pinta or the Galápagos Legend, the ship sets the standard of comfort. Our naturalists set the standard of understanding. Samuel or John prepares every expedition with you, and every guest receives Samuel’s book before sailing, so that each landing begins with context rather than a first impression.

If you have one question about the islands, ask it to someone who was born there.

Meet our naturalists

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Blue-footed booby standing on volcanic rock, Galápagos Islands

Through a Naturalist’s Eyes · 3 min read · 4 November 2026

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