The Ljubljanica has become a popular site for archaeologists and treasure hunters to dive for lost relics and artifacts. Locations in the river between Ljubljana and Vrhnika have offered up pieces of history from the Stone Age to the Renaissance, belonging to a variety of groups, from local ancient cultures to more well-known groups like the Romans and the Celts.Kaufmann, Carol (Jan 2007). "A River's Gifts". National Geographic Magazine. 150-7. One of the more significant findings is a yew spearhead, found in 2009 in Sinja Gorica. It has been dated to about 35,000 to 45,000 before present, the Szeletian period, and supplements the scant data about the presence of Stone Age hunters in the Ljubljana Marsh area.
