The Undercroft, solidly constructed from the former basement of the Auberge d’Allemagne and as the new foundation of the building, was not used for 80 years. The Bishop opened it on Easter Day 1928 as a church hall. In 1938 it was made a gas-proof air raid shelter and in the early days of the conflict was used by the chaplain, his wife and scores of Maltese citizens. The undercroft has undegone recent renovation into a handsome space incorporating the Visitor Centre and The Undercroft trattoria.

The internal access to the Visitor Centre is currently closed due to restoration works. Kindly view the map below to see how to reach the Visitor Centre from the entrance / exit of the Cathedral.