Infos COVID-19

In order to ensure a safe and pleasant experience for all please read the following info before your visit.

As it is not possible to maintain spacing during the visit we are requested to enforce tracing. Therefore all visitors have to use our online booking system. This allow us to trace people back in case of infection, and it will give us the ability to avoid having large crowds coming at the same time.

It is compulsory to wear a facemask during the visit.

Before your visit

Be in good health

your ticket

Access without booking is not guaranteed.

During your visit


The queue line is outside of the building in order to allow spacing.


Boats and contact surfaces are sanitized after each group.

Walking path

Please follow the signs on the floor.


Wearing a facemask is compulsory during the tour. Masks are available for sale at the entrance. Kids under 12 year old are exempted. No other exception is tolerated (even with a medical certificate)


The number of people per day and per boat is restricted in order to avoid big crowds.


Please be on time for your visit in order to avoid inconveniences and longer waiting time.

Visite guidée en barque