Giant Cave

In the Grotta Gigante cave, located nearby Trieste, you will be able to visit our facilities and discover with your own eyes an exciting place, where tourism, environment and scientific research blend together, nature comes in shapes and colours of rare beauty and science hides under the ground in order to understand our planet at best. The cave is one the most interesting tourist sites in the Italian region Friuli Venezia Giulia, and is also relevant from a scientific and geological point of view. Every year more than 80.000 tourists appreciate in our cave an unique experience that leave unforgettable memories. The cave Grotta Gigante is the world’s biggest touristic cave with an unique Chamber: a volume of 365,000 cubic metres, it‘s 167,70 metres long, 76,30 metres wide and 98,50 metres high. The tour of the Grotta Gigante cave lasts 1 hour and a specialized guide will take the visitors through a 850 metres long path, descending 100 metres beneath the earth’s crust. The temperature inside the cave is +11°C all year round.