Volčji Potok Arboretum, Botanical garden and national monument in Kamnik, Slovenia

Volčji Potok Arboretum covers 88 hectares near Kamnik, with about 2,500 species of trees and shrubs, five artificial lakes and 30 hectares of forest. A 19th-century tree avenue leads into a geometrically laid-out French-style central section, while other parts follow an English style. The geometric park in front of the former mansion was designed in 1918 by Leon Souvan.

The estate was first documented in the 17th century and became part of the Souvan family holdings from 1885 onward. It opened to the public as an arboretum in 1952 following changes to its ownership.

The park hosted Slovene impressionists, among them Matija Jama, around 1900. The gallery, renovated in 1991 by architect Andrej Kemer and designer Miljenko Licul, shows Janez Boljka's animal sculptures; its ground floor hall serves receptions and wedding ceremonies. Outdoor cultural events and exhibitions are held here, including a Minimundus model show in 2010 that presented a model of Bled Castle for the first time.

The arboretum sits about 20 kilometers from Ljubljana and is accessible by various transportation options. The site maintains its own plant nurseries and a garden center that also provide landscape architecture services throughout the region.

The park's forest shelters a rare stand of fir with the three-lobed liverwort Bazzania trilobata, a combination uncommon in Slovenia. At the top of the wooded hill stand the ruins of a pentagonal Romanesque residential tower first mentioned in 1220, with a 16th-century Renaissance bastille at the castle courtyard entrance. A viewing tower opened on the hilltop in 2023.