The Koria archipelago is located northeast of Monastir, about 20 km from the mainland, and it consists of two small islands; Quri al-Kabirah (270 hectares) and Qoriya al-Saghira (50 hectares), this archipelago consists of sandstones belonging to shallow waters and occupies a convex fold in the middle of a trench filled with a very thick sedimentary formation, and is characterized by flat and low morphology, and this archipelago constitutes a migratory stop for birds of importance International, such as the Lean Gull classified as a Vulnerable species, it is also one of the main nesting sites for loggerhead sea turtle in the southern Mediterranean.