Perda Longa di Baunei, Limestone monolith near Baunei, Sardinia, Italy

Perda Longa is a limestone crag dropping sheer to the sea, jutting out from the slope of Monte Santu di Baunei and reaching 128 metres in height. Its rock faces are largely bare, with olive and carob trees growing in the gullies. Since 1993 it has been a natural monument within a 9.96-hectare protected area.

In 1993 Perda Longa was declared a natural monument for the scientific value of its biological and landscape features. It lies within a regional protected area of 9.96 hectares in the municipality of Baunei, on the flank of Monte Santu di Baunei.

Locals call it Pedra Longa in the Baunese dialect, while standard Sardinian and Italian give Perda Longa, "long stone". The rock is a landmark for people from Baunei and for sailors passing the Gulf of Orosei, who use its profile to read the coast.

The rock stands in the municipality of Baunei, on the coast of the Gulf of Orosei, and is reached from the SS 125 by a branch road of about four kilometres to a parking area with food services near the viewpoint. The protected area around it covers 9.96 hectares.

The whole outcrop is protected as a regional natural monument covering 9.96 hectares in the municipality of Baunei, established in 1993 for the biological and landscape value of its limestone cliffs. The baunese name Pedra Longa is still used locally alongside the Italian form.