Naples Underground is easy to reach by metro or bus and takes guests on an amazing underground tour of a city that's over 2400 years old!
See the ancient aquaduct that's been providing the city with water for 23 centuries, an ancient theater, and more! You won't believe what's down there.
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BUT ... the group was so large if you got stuck at the back of the group the guides chat was over before the back of the group caught up to the rest of the group. The guide is very informative but it's so obvious that timing is an issue as he talks extremely fast and pushes you along without hardly a moment for a photo. For me the negatives out weighed the positives which was sad and really unnecessary if they organise and think more about the paying customer.