Saturday: 10h - 17h30
Performance Trampolim Gerador 16h, 17h, 18h
Saturday: 10h - 15h30 (visitas a cada 30 minutos)
No reservation required; first-come, first-served
Maximum 15 people per visit
The majestic stone chamber that forms the Patriarcal Reservoir lies underground, beneath the Príncipe Real square. Built between 1860 and 1864, it became the most important reservoir in the water supply network servicing the lower area of the city. Shaped like an octagon, it comprises 31 pillars rising to a height of 9,25 meters that support masonry arches which, in turn, support the vaults, creating a sense of almost overwhelming magnitude. Connected to the Águas Livres Aqueduct, the reservoir was deactivated in 1949. Presently, it provides underground access to the Loreto Gallery, through a 410m connection that leads to the São Pedro de Alcântara Garden.