Efrenk River

The headwaters are in the Toros Mountains, near the town of Arslanköy and the village of Atlılar (Sadiye).

The river runs east and then south, flowing to the Mediterranean Sea within the city of Mersin at 36°47′06″N 34°37′16″E / 36.78500°N 34.62111°E / 36.78500; 34.62111.

The drainage basin is only 480 square kilometres (190 sq mi) in area.

Like the other locations of the Mediterranean Region annual precipitation is mostly in the spring and the winter.

While the average flow rate is quite low, 303 m3/s (10700 ft3/s) had been recorded during the flood of 2001.