Visit reservation and tickets available at the facility

A hidden treasure of the Trieste Carso. Accompanied by a specialized guide, along the approximately 850-meter precourse into the bowels of the Earth, you will descend to a depth of -101 meters from the surface entrance, discovering the wonders of the underground world. A unique experience that will thrill you

Closing day: Monday

Useful information:

• Reservations required as visits are limited in number
• Temperature of Giant Cave: 11° (constant throughout the year)
• Recommended the use of comfortable footwear
• Small dogs with carriers allowed
• The descent is about 500 steps (twice as many for the ascent)