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Friuli Venezia Giulia
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Province of Trieste
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Sgonico
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Borgo Grotta Gigante
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The Cave "Grotta Gigante"
The largest naturally occurring cavern in Europe, The Cave "Grotta Gigante" was discovered in 1840 during a search for underground water sources for the town’s aqueduct. Take a tour, available in Italian or English, and head down the 500 steps, past ancient stalactites and stalagmites, stopping to take in the views. After the tour, visit the nearby museum of speleology to learn more about the formation of the caves and see some interesting geological and paleontological finds, as well as a poster collection depicting the cave. Quickly create a custom-made itinerary for Borgo Grotta Gigante using our trip planner.
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Tours to The Cave "Grotta Gigante"
The Cave "Grotta Gigante" reviews
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The caves were just so cool! Much larger than expected. The tour lasted an hour and the guide was very knowledgeable. I learned a lot about stalagmite/stalactite formation which really rocks...
The caves were just so cool! Much larger than expected. The tour lasted an hour and the guide was very knowledgeable. I learned a lot about stalagmite/stalactite formation which really rocks... more »
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Impressive natural cave. 500 steps down so 500 up. Excellent guide, sorry don't know his name who was open to questions in Italian and English.
Impressive natural cave. 500 steps down so 500 up. Excellent guide, sorry don't know his name who was open to questions in Italian and English. more »
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Definitely the largest open area I've seen in a cave. It's overwhelming to enter this huge open space that is completely under ground (as with any cave, of course) and especially to descend to its bottom and then up again. A wonderful experience and a great guide! We had a nice technical discussion and we got interesting details about the earth, not just this cave. Great job!
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Highly recommend this cave, it is ENORMOUS. Our guide was very knowledgeable and gave the tour in Italian and English. 👍🏽
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