The interior of the Clock Tower comprises various small spaces linked by narrow and steep stairs; thus the building is inaccessible for those with walking difficulties and the visit is not recommended for pregnant women or for those who suffer from claustrophobia, vertigo or heart conditions and respiratory diseases. All visitors must be over 6 years old. Meeting point is the Ticket Office of the Correr Museum (P.za San Marco, 52), 5 minutes before the departure time stated on the tickets.