The Monte Majore Cave (Sa Korona of Monte Majore in Sardinian) is a natural cave located in the municipality of Thiesi, in the province of Sassari.
The entrance is not easy to spot and lies on the eastern slope of the mountain of the same name at around 540 m a.s.l. The cave extends for around 300 metres and has a low, long entrance hidden by a dense forest. The mountain from which the cave takes its name, standing 598 m a.s.l., has a flat crest mainly consisting of limestone rocks from the Miocene era.
The cave has a large entrance and continues, on the initial stretch, with a short access tunnel, flanked with various rock walls. After passing the first section, you enter a single, large room, which partially covered the entire cave. At about 100 metres from the entrance, an additional tunnel descends on the left where you can see an unusual white karstic flow of limestone and a pool of water.
The cave continues with various wells and running water until you reach the end where there is a pool full of water.
The cave is completely concretionised; inside it is possible to observe an immense colony of 5,000 bats of 3 important species.
Important traces of prehistoric existence were also uncovered in the cave.
The area of the Monte Majore can be reached along the road which leads from Ittiri to the town of Romana.
