- What is it?
- A large show cave inside the limestone massif of Ulassai, with concretions, columns and chambers of considerable height.
- Where is it?
- Municipality of Ulassai, inland Ogliastra.
- Why visit?
- Because it shows the structure of the tacchi from inside: the same rock that forms vertical walls at the surface is hollow beneath.
- How do you get there?
- By car to Ulassai and then to the cave entrance.
- When to go?
- The internal temperature is cool and constant all year; visits follow a seasonal schedule.
- How long does it take?
- The guided visit lasts roughly an hour according to commonly reported information. Add the transfer time from the coast.
- What is nearby?
- Ulassai, the Ogliastra tacchi, Jerzu, Gairo.
- What can you combine it with?
- With a walk through Ulassai and the works of Maria Lai, and a stop at Jerzu among the vineyards.
- Where to stay?
- This is an inland excursion: anyone based on the coast, for instance at I Mandorli in Triei, can pair it with Ulassai and Jerzu in a single day.