It is in the northeast of the Mediterranean Sea between the gulfs of İskenderun and Antalya.
The main rivers to the gulf are Göksu in the west, Berdan (Tarsus) and Seyhan in the east.
There are also a number of smaller rivers such as Alata, Limonlu, Tece, Mezitli and Müftü.
(The smaller rivers usually have irregular flow rates depending on the season.)
The biggest city of the gulf is Mersin which is one of the metropolitan centers in Turkey.