Lake Beržoras Island is located in the western part of Lake Beržoras, in the Beržoras Landscape Reserve. The island consists of two parts: the eastern part of the island is raised, dry, and the western part is wet. The widest point of the island is only 25 m. The island is overgrown with linden, oak and black alder. The very rare onion cards listed in the Lithuanian Red Data Book also grow here. The area of the natural heritage object is 0.34 ha.