Su Marmuri Cave

The Su Marmuri Cave (in Sardinian, “marmuri” means marble) is located in the territory of Ulassai, in Ogliastra, in central-eastern Sardinia, beneath the characteristic Tacco of the town itself, within the Tacchi Natural Park. This is a living cave, with a visible length of 850 meters, entirely flat, featuring two distinctive underground lakes.

One of the cave’s unique features is its imposing halls with very high ceilings, along with numerous calcitic formations, including grand stalactites, stalagmites, and columns. The internal temperature remains a constant 10°C.

The cave’s fauna includes:

• The Ovobathysciola Gestroi, an underground beetle common in the Tacchi region;
• A species of Sardinian cave salamander;
• A particular amphibian adapted to cave life, called Speleomantes Imperialis;
• Italy’s largest bat colony, with about 30,000 individuals.