Opening periods
The Citadel is open all year round, 7 days a week, except 25 December, 1st January and annual closure of one month at the beginning of the year (in 2019, from 7 January to 3 February inclusive).
Recommended visit time
At least half a day for self-guided visits of the whole site. At least 2hrs for an exploratory visit.
2019 opening hours
All attractions close 15 min. before the site closing time.
The ticket offices closes 30 min. before the site closing time.
The Zoo animals start being housed for the night between 1 hr and 1 hr 30 before closing time according to the season.
Pets are not allowed on the site (except guide dogs).