The tour through the aqueduct and the history are very cool, but the group sizes are far too big and there's no gap between groups. So you're underground and the noise of everyone talking is very intense - I found that more claustrophobic than the tunnels. Plus there's a lot of waiting for people to move on, including in very tight tunnels. Good tour but it would be excellent if they spaced it out a bit more.

Excellent tour. Learned both ancient and modern history, saw the aqueduct, walked the tunnels and then had another tour outside of the underground and saw the Roman theatre. Definitely not for very claustrophobic people (I get pretty anxious in small spaces and this was a concern, but the tour is very cool and makes up for it). Would recommend if you enjoy history, architecture and seeing parts of the city that may be less clearly touristic.

Completamente diversa dall'esperienza fatta in Galleria Borbonica, che ho amato particolarmente, ma merita. Mi è piaciuto particolarmente provare i passaggi strettissimi dei pozzari. Percorso facile anche per chi non ama gli ambienti chiusi, potendo evitare i passaggi dei pozzari (la Giuda ha dato questa disponibilità).