The Lake Prespa is located on the tripoint of Albania, Greece, and North Macedonia. It is a system of two lakes separated by an isthmus: the Great Prespa Lake, divided between the three countries, and the Little Prespa Lake, mostly within Greece. They are the highest tectonic lakes in the Balkans, at an elevation of 853 metres.
The area contains three national parks: Galičica National Park in North Macedonia, Prespa National Park in Albania, and Prespa National Park in Greece. The largest town in the region is Resen in North Macedonia. In 2014, Ohrid-Prespa Transboundary Biosphere Reserve between Albania and North Macedonia was added to UNESCO's World Network of Biosphere Reserves.
Wikipedia https://en.wikipedia.org/wiki/Lake_Prespa
Address 53077, Greece
Coordinates 40°48'47.844" N 21°4'18.397" E