The cave is considered among the most impressive in Europe thanks to its kilometre long and an average height of 35 meters. Descended the 200 steps of the initial height difference, the visit takes place along an easy plan trail that passes over an infinite number of drip trays from which often form little lakes along the right wall. The numerous concretions are very special, whose dimensions are proportional to those of the environment. The grandeur of some groups of stalagmites and of the draperies that hang from the wall is surprising. The cavity of the cave is carved into the “Tacco di Ulassai”(The Heel of Ulassai), the limestone massif that dominates the country: the entrance opens onto a steep scree slope made easily viable by a staircase of 200 steps. Su Marmuri is a cave still alive, which means that the concretions continue to form. The walkways are easy and allow you to admire a beautiful scenery, two underground lakes, formed by continuous drip, drip trays, stalactites, gigantic stalagmites, columns, pisoliths, splash (globular forms caused by the dripping) and other spectacular calcite concretions. The cave consists of several impressive halls rich of concretions and with very high ceilings. The largest room is called the “Great Hall” has a rectangular shape, is 72 m long and 30 m wide. In the Organ Hall the concretions are similar to organ pipes. The Hall of Cactus is characterized by the presence of two high stalagmites reminiscent of the famous exotic succulents. The other rooms are: the Hall of Bats, the Gallery of the drip trays and the Hall Terminal . The internal temperature is constantly of 10°C or so.
The Su Marmuri Cave (In Sardinian means “Cave di Marmo“) is located in the territory of Ulassai. GPS Coordinates: 39.8267, 9.5