The Formation

Big Cave of Wind´s carsic originality

If the tickets available online are sold out, it is still possible to buy them at the Ticket Office of the Caves. Admission is guaranteed.
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ATTENTION! Tickets ARE NOT REFUNDABLE, in case of non-use or arrival after the time written on the ticket. It will therefore be necessary to pay another ticket for a subsequent tour.
Access to dogs is allowed only with a pet carrier, not on a leash. For large dogs, 3 concrete dog boxes with a lockable front grille with padlock are available at the ticket office parking lot.
Located in a safe and shady place, they are not guarded. The visitor can use the pit space for a limited period of time for the visit to the cave, it cannot be booked and availability is requested once they arrive on site.

Sediments, deposits and minerals discovered in the caves evidenced the peculiarity of the “carsism” of the Caves of Frasassi. Basic element is the presence of great and imposing deposits of chalk. This chalk sediment, deposited in the rooms after sulphureous water's cooling by river Sentino, presents itself with a white saccaroidal and microcrystalline structure and it is covered with microcrystalline geminate crystals. These deposits reach their best in Ancona's Abyss.

Here the chalk, 10 metres thick , passes from a white saccaroidal and microcrystalline structure to a grey microcrystalline structure. Giant stalagmites and columns with holes and cracks filled with white microcrystalline chalk are peculiarities of the Big Cave of Wind.