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Grotta Gigante, Sgonico

(650+ reviews on the web)
Outdoor Activity
The largest naturally occurring cavern in Europe, 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. To visit Grotta Gigante on your trip to Sgonico, use our Sgonico trip builder.
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Reviews
TripAdvisor
  • The area of Friuli packs a wondrous underworld due to the shape of its subsoil, and this is one of the many caves that you can visit. The giant cave is superb, long and high, with a significant amount of steps to go down into the depths of the cave, who nimbly down, a little more brigoso, but not impossible, the climb to the exit. It is accompanied by a talented team of multilingual guides. If you are in the area to visit.
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  • We had such a great experience exploring the cave with the guide. The cave is easy accessible by public bus 42 departing from the Trieste bus station. The ride to the cave (bus stop Borgo Grotta) last...  more »
  • It will be for the professionalism of the company Handbook Alpina delle Giulie (Trieste section of Italian Alpine Club) or the little "fear" of 500 steps (actually, it's a hassle sostenibilissima!), but this cave communicates a sense of magnificence that is difficult to describe. The glance as you go down will leave you speechless. the temperature is always 11° all year round, with a humidity level at 96% (for bald like me, I suggest a hooded sweatshirt or a hat, because the visit lasts an hour). The entire ticket is € 12.00. The Guide Specifies not to touch the stalagmites (brain mass people we should be here alone). because many people, not only children (teach them after they have been placed in the world!) continue to touch them? MAH ... An unforgettable experience!
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Google
  • The unexpected magnitude of the place along with its suggestive beauty, enhanced by a good use of artificial lighting made this visit a magic experience, for me. The ticket isn't cheap, but it's well worth it. The tour takes the better part of an hour, and it has many steps. The temperature inside is always cool so if you are visiting in the warmer months you should bring some extra clothing. Best thing to see around Trieste, in my opinion.
  • The scale is just unimaginable. Very special place. Glad we could share this moment with our eight year old. I would come to Trieste again just to see this magnificent Grotto! The guide was lovely too!
  • I have been here several times because I live in Trieste. I would definitely recommend to stop by because it is seriously HUGE and beautiful!
  • Huge cave. You have to do a lot of steps but it's amazing
  • Very interesting cave, not so long nor big, but I can stills say I liked it.