The Grotto of the Dog
Typology: Artifical cavity from the time of the Romans
Description: A small artificial cavity in which lethal amounts of carbonic acid build up at the bottom, causing asphyxiation, which has led to the nickname.
City: Napoli - Agnano
Coordinates: N40 49.627 - E14 10.314
GPS track: route along the ancient ring road
Address: via Raffaele Ruggiero
Website: Grotta del Cane
Photos: Entrance to the grotto
For more information: The ancient thermal baths of Agnano and the Grotto of the Dog
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