These caves are among the most fascinating and get their name from the Mediterranean Monk Seal that used to inhabit them. They can be reached only by sea.
The trip starts from Dorgali harbour. Along the sea journey you can admire the imposing calcareous cliffs that plunge into the gulf's crystal-clear waters and charm even the most absent-minded visitor.
The tour takes place in the southern part and along the way you notice the peculiar stalagmites and stalactites of various hues, that thanks to plays of light favour particular chromatisms of  rare beauty, emphasized by the clearness of the beautiful salt lake waters (among the widest in the world, with a surface of more that 1km).
Especially interesting are the many fossils, among which are oysters, that further enhance the 30-minutes walk that ends at the seals beach: a beautiful small beach, where, until few years ago, the Mediterranean Monk Seal used to bring its pups to the world.
 

Accommodation (Middle-est Sardinia): Hotel (click here) - Resort(click here) - Residence (click here) - B&B (click here)