At only one kilometre from the town of Ulassai, in Ogliastra, on the eastern side of the island, is one of the most interesting caves of the Sardinian territory that visitors can set eyes on, that of Su Marmuri. It opens at 880 m above sea level and stretches for some 850 m, all of which can be visited and a height gradient of -34 m. The visit lasts around an hour, and starts with the descent of 500 steps.
Its name refers the particular coloration and aspect of the calcareous rock, that rises to dizzy heights in some stretches along the route, up to 70 m in height, to the point of making this cave the highest in Europe.
The magnificent and precious concretions that enrich the insides constitute a sure reason for attracting visitors drawn into a magnificent trip.
The tall chambers dense with extraordinary concretions, the small underground ponds fed by the incessant dripping, the small basins, the stalactites, the enormous stalagmites and the columns are all surrounded by a constant temperature of around 10 degrees C and create a special environment that arouses deep admiration.
Among the numerous chambers is the rectangular ‘Great Chamber’, the ‘Organ Chamber’, whose concretions look like the pipes of the musical instrument, the ‘Cactus Chamber’ with tall stalagmites similar to cactus plants, the ‘Bats’ Chamber’, the ‘Tunnel of the Small Basins’ and the ‘Terminal Chamber’.