The Ljubljanica River features an extensive karstic and wetland basin and numerous archaeological finds that place it among the world’s sites of special interest. One of the richest and at the same time most endangered archaeological sites was declared a cultural monument of national importance in 2003 and is also protected as natural assets of national importance. The Ljubljanica River project was conceived in 2014-2016 by the Museum and Galleries of Ljubljana in collaboration with the Vrhnika municipality, Ljubljana's Biotechnical Faculty as well as domestic and foreign experts. It was co-financed by EEA Grants. The project focused on underwater research, the conservation of a dugout boat from the 2nd century BC, remedial work on the riverbanks and monitoring, among other things. It culminated with the Ljubljanica River Exhibition in the town of Vrhnika, which is dedicated to the natural and cultural heritage of the river and its surroundings. The Ljubljanica River project has received a UNESCO label Best Practices related to Underwater Cultural Heritage on 21 June 2019 as part of the seventh conference of signatories to the UNESCO Convention on the Protection of the Underwater Cultural Heritage in Paris.