In the earthquake of April 18, 1928, the earth opened, and at the stream to the village is becoming a lake. Martvitsata called because it is considered that occurred on lap of land and water in it is dead. In 1978 was declared as reserve. There you can see Nymphaea alba (European White Waterlily) and Populus alba (White Poplar). (http://wikimapia.org/14473712/Martvitsata-Lake)