Kailuka Park is located to the south of the city center of Pleven. It was declared as a protected place. It is rich in many protected animal and plant species.
It is located about 10,000 decares in the karst valley of the Tuchenitsa River. The natural canyon of the river has sheltered a rich and varied flora and fauna where unique plants for Bulgaria and the Balkan Peninsula meet, and many birds and mammals are included in the Bulgarian Red Book. There lived prehistoric animals and creatures millions of years ago, and in most limestone rock masses there are still fossils of ancient aquatic organisms.