The littoral region of Alexandria, east of Silsileh (the eastern promontory of the Eastern Harbor) to Montazah promontory was investigated combining archaeological and geomorphological evidence in order to better understand the subsidence of the coastal zone. The coastal zone is rich in archaeological and geomorphological features able to provide insights into the evolution of the coastline and the relative sea level changes. Our study has revealed a continuous subsidence of the coastal zone, owed to various contributing processes, while further research is required to decipher the coastal evolution of this littoral.