Nautilus was Mutriku’s Geological Interpretation Centre, at Jose Antonio Ezeiza kalea, 3, in Gipuzkoa. The centre is permanently closed, so there are no current Nautilus hours or tickets to plan around; its former opening schedule is useful only as background.
- Location: Jose Antonio Ezeiza kalea, 3, 20830 Mutriku.
- Status: permanently closed.
- Former schedule: intermittent opening on weekends, selected dates and during high season.
Where was Nautilus in Mutriku?

Nautilus stood at Jose Antonio Ezeiza kalea, 3, in Mutriku. The centre focused on fossils from the town’s Black Flysch, including ammonites, and its collection mostly belonged to Jesús M. Narvaez Amasorrain and Esperanza Azkarraga.
Mutriku’s Black Flysch is the oldest flysch in the Basque Coast UNESCO Geopark, and some of its geological features are visible at low tide. For context on the fossils and the area’s geology, read about the geological story behind Nautilus.
How do you get to Nautilus?

Nautilus is about a 42-minute walk or a 3-minute drive from Hotel Arbe, which offers rooms for your stay.
The stated travel times do not provide a walking route or local bus connection, so don’t treat the walking time as turn-by-turn directions.
What were Nautilus’s opening hours?

Nautilus is permanently closed, and its former opening hours no longer apply. Before it closed, the centre opened intermittently on weekends, selected dates and during high season; visits could also take place when a guided tour was confirmed.
While it was open, internal guided visits were listed at 12:00 and 17:30 during opening hours and usually lasted one hour. The former admission price was €2, or €3 for an internal guided visit. These are historical details, not current ticket options. For current information about local attractions, check the official site before you go.
What could you combine with a Nautilus visit?

Nautilus focused on Mutriku’s fossils, while the wider coastal setting offers another way to understand the geology: the Basque Coast Geopark runs guided tours throughout the year. A former Nautilus-and-fossils activity combined a centre visit with a boat trip to the cliffs where the fossils were found, but that activity and its reservations are not current visit options.
For a town-focused outing, Mutriku’s centre provides a different stop from the former museum. Get practical orientation with this guide to Mutriku town centre.
FAQs
Is Nautilus in Mutriku open?
No. The Nautilus centre is permanently closed.
What were the former Nautilus opening hours?
It had an intermittent schedule, opening on weekends, selected dates and during high season. Guided visits could also be arranged when confirmed.
What did Nautilus display?
The centre displayed fossils found in Mutriku’s Black Flysch, including ammonites. Most of the collection belonged to Jesús M. Narvaez Amasorrain and Esperanza Azkarraga.
