Starting point: Parcheggio Grotte Su Marmuri

End point: Parcheggio Grotte Su Marmuri

Distance: 23 Km

Average time: 3 ore

Hight gain: 500 m

Surface: dirt road 78% asphalt 22%

A cross-country ride with natural history, archaeological and anthropological interest.

There are several good vantage points, among which Punta Scala su Istressi and Punta su Scrau, natural monuments such as the scala di S.Giorgio and the schist Pardu valley, the nuraghi Serbissi (the finest in the whole of Ogliastra), Orruttu, Sanu and Urceni and several caves such as Serbissi, Sa rutta e su Lioni, and Sa grutta Orroli. These all add extra interest to a ride which is already very satisfying as it winds between the white limestone Tacchi and through holm oak woods where you find wild boar and deer.