Just imagine: 16 emerald karst lakes and 92 silvery waterfalls. Transparent fragrant air. Mountain caves. Ancient beech and coniferous forests. And dozens of paths and routes - from easy ones for a couple of hours' walks to serious eight-hour hikes. It is impossible to get lost in the reserve, there are signs everywhere, but you should not go deep into the thicket, so as not to disturb the local fauna.

The Kostelsky Buk waterfall is, of course, a creation of nature. However, traces of human involvement are also noticeable – there used to be fifty water mills on the waterfall, and people would redirect the streams so that they would turn the mill wheels. Now only one mill remains.

The Una National Park area is located in the far western part of Bosnia and Herzegovina, in the area of ​​the city of Bihać. It includes the valley parts of the Una and Unac rivers, and the orographic slopes of the Plješevica, Grmeč and Osječenica mountains. This area represents a unique natural entity in this part of Europe, valuable for the preservation of the overall biological diversity.

The Garavice Memorial Park to the Victims of Fascist Terror was designed by renowned architect Bogdan Bogdanović, and completed in 1981. It consists of 15 stone columns placed around the crest of Garavice Hill, roughly 15 feet in height and each formed from a series of carved stone blocks. Engravings on the blocks show curious patterns and abstract designs, reminiscent of local folk art.