Mısır’ın ünlü kraliçesi Kleopatra’nın sevgilisi Romalı General Antonius ile Tarsus’ta buluşmak üzere geldiklerinde, o zamanın limanı olan Gözlükule’de büyük törenle karşılandıkları ve Deniz Kapısından şehre geldiği söylenir. Bu sebeple Deniz Kapısına Kleopatra Kapısı da denmektedir.

As the city was one of metropolis of the ancient age, the Mount Gate the unique remaining apart from Adana Gate. The gate underwent many restoration and it is thought the gate had built on another gate built at the beginninge of the Byzantine age. Evliya Celebi, in his travel book indicated to the gate with name of “Quay Gate”. Khorasan cement aggregate had been used in the construction of the gate. Gate edge has a horseshoe shape and is high from the ground at 6.17 meters, deep at 6.18 meters. Until end of the 18th century, Tarsus had very sound three gate walls, which were destroyed by Egyptian İbrahım Pasha in the year 1835 and only the one-legged single arched sea gate survived.

When Egypt’s famous queen Cleopatra came to Tarsus to meet with the Roman General Antonio, they were received when with a great ceremony at the then port of Gozlu Kule and is is said that she entered through the Sea Gate. This is why the Sea Gate has another name “Cleopatra Gate”.