The network of 230 kilometres of mountain paths reveal to hikers the cultural and natural heritage of the Isonzo Front, one of the bloodiest mountain theatres of war in history.

The years of combat waged in the steep hills rising above the Soča valley in western Slovenia left a significant mark on the landscape and the region - from cemeteries, cave hideouts, trenches, ossuaries, chapels and other monuments.

These are connected with a network of mountain paths starting in the village of Log pod Mangartom in the north and ending in the coastal town of Duino in Italy.

The tentative lists include sites UN members want to nominate for the UNESCO World Heritage List in the future.

Slovenia has so far entered six sites onto the UNESCO tentative lists, some of them together with some other countries - the Kras landscape, mountain iron works in Bohinj, the Franja WWII hospital, European beech forests and the work of architect Jože Plečnik (1872-1957).

Three Slovenian sites are meanwhile already part of the UNESCO World Heritage List - the Škocjan Caves, the prehistoric pile-dwellings in the wetlands south of Ljubljana and the decommissioned mercury mine in Idrija.