There are two different gates that lead to the subterranean Naples.
One entrance is hidden at the Piazza San Gaetano
in a small alleyway of the historic city. Tours take about 2 hours; on request, group tours. For opening hours, inquiries, pictures, more information, and a site plan, please contact the private cultural society Napoli Sotterranea
at the entrance at Piazza San Gaetano 68,
or visit www.napolisotterranea.org .
The other entrance to the underworld is next to the
well-known Bar Gambrinus at the Piazza Plebiscito. For further questions, opening hours, and to make reservations for a tour, please contact the Associazione LAES, Napoli e la Cittą Sotterranea
at the entrance at Piazza Trieste e Trento - (Bar Gambrinus),
or visit www.lanapolisotterranea.it .