Don't just wander around the surface of the earth — find out firsthand what's below it too. See bizarre natural formations and shapes in the deep, shadowy recesses of Grotte Su Marmuri.
If you're planning to stick around a while in Ulassai, Grotte Su Marmuri is a great place to start your exploring. This natural underground attraction is one of numerous attractions worth seeing here. Montarbu Forest, Monte Armidda Observatory, and Serbissi Archaeological Area are also waiting for you close by.
