geocalia

Guide · Étretat

Natterra

Outings guided by a naturalist on the cliffs of Étretat: seabirds, coastal plants, chalk and flint, on foot along the top or on the shore at low tide.

Natterra is the name under which Cyriaque Lethuillier works, a naturalist guide in Étretat. Instead of looking at the arches as a postcard, his outings explain what lies behind: how chalk and flint form, why the cliffs fall, which birds nest in the wall and which plants withstand the wind and salt at the top. The Le Havre-Étretat tourist office recommends him for naturalist visits to the cliffs.

The outings

He advertises four types: a full cliff visit, a twilight outing at dusk, a low-tide discovery on the shore and a made-to-order outing for a group, a family or a couple. He also works with schools, secondary schools and universities, and with agencies and companies. Outings follow a calendar he publishes on his website or are held on request, depending on his availability.

Price and booking

The website does not publish rates per outing; the tourist office listing gives a price from €30. You book by phone or email, and if no date on the calendar fits your trip, you can ask him for a tailor-made outing. The durations, minimum age and meeting point of each outing are confirmed when booking.

What they run

The Geocalia activities run by Natterra, with the prices and terms they publish.

Independent companies: you book with them, on their terms. Prices are as they publish them and may change.

Practical details

Details checked on 12 November 2026.

Frequently asked questions

Are there guided visits of the Étretat cliffs?

Yes, Natterra organises outings with a naturalist guide along the cliffs and the shore at low tide.

How much do they cost?

The tourist office gives a price from €30; the guide's website does not publish rates.

How do you book?

By phone or email, according to the calendar of outings or on request.

Independent company: you book with them, on their terms.

Opening hours and prices can change: check them before you go.

Is this your company? Write to us to correct or complete the details.

Itineraries

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