The Trail of Remembrance and Comradeship, also referred to as the Trail Along the Wire, the Trail Around Ljubljana, or the Green Ring, is a gravel-paved recreational and memorial walkway almost 33 km long and 4 m wide around the city of Ljubljana, the capital of Slovenia. The walkway leads past Koseze Pond and across Golovec Hill.
During World War II, the Province of Ljubljana, annexed by Fascist Italy, was subjected to brutal repression after the emergence of resistance and the Italian forces erected a barbed wire fence—the route of which is now the Trail of Remembrance and Comradeship—around Ljubljana in order to prevent communication between the city's underground Liberation Front activists in Ljubljana and the Slovene Partisans in the surrounding countryside.The construction of the trail started in 1974 and was completed in 1985. It is marked by signposts, information boards with the map of the trail, plaques, and metal markers, as well as signposts at the turn-offs.
Wikipedia https://en.wikipedia.org/wiki/Trail_of_Remembrance_and_Comradeship
Address 64 Trubarjeva cesta, Ljubljana 1000, Slovenia
Coordinates 46°3'7.999" N 14°30'49.118" E