On our online ticketing system, in the calendar, the red, orange or green lines correspond to the availability for each date.

When a date is marked with a red line, all tour slots are full. It is marked "sold out" and it is no longer possible to make a reservation.

When the line is orange, there are still some slots available. Simply click on the date to see the remaining slots and buy a ticket.

When the line is green, a majority of slots are available.