Located between the municipality of San Dorligo della Valle (Dolina) and the Slovenian municipality of Erpelle-Cosina (Hrpelje-Kozina), Val Rosandra is characterized by a complex geomorphology and a wild appearance, with cliffs, scree slopes, steep and stony slopes that recall the great Dinaric valleys of Dalmatia. The most striking peculiarity is the sudden and evident transition from the subalpine continental climate to the Mediterranean one. The upper part, upstream of the waterfall of the Rosandra torrent, is in full continental climate, while downstream, immediately after the waterfall, it becomes Mediterranean par excellence.
After centuries of history, today Val Rosandra is no longer a passageway, but has been transformed into an oasis reserved for nature lovers, a regular destination for hikers, climbers and sportsmen and women from Trieste. A few kilometers from the bustle of the city, you can immerse yourself in a still uncontaminated environment, to be discovered along the path at the bottom of the valley, on the summit slopes of Monte Carso or along the old railway line.