Mysteries of the river Drava are best discovered in the river’s old beds, inundated forests, cascades and gravel-pits. Natural habitats in the area of BERL in Hajdoše are well preserved, and offer excellent opportunities for observation of animals and plants.

In order to preserve this important eco-system, the municipality of Hajdina established a 2-kilometre long circular natural trail BERL. A mark of the trail is the kingfisher which belongs among endangered species. At a certain point of the trail, there is a “natural classroom” in which typical fauna and flora of the area are presented.