Cape Kaliakra, Bulgaria (IMAGE) Universiteit Utrecht Faculteit Geowetenschappen Caption Rocks formed during the megalake crises have become cliffs overlooking the Black Sea, one of the few remains of the ancient megalake. Cape Kaliakra, Bulgaria Credit Utrecht University Usage Restrictions N/A License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.