Azmon

From there your border turns, goes south of the 'Akrabbim Ascent and passes on to Tzin. From there it goes south of Kadesh-Barnea, on to Hatzar-Adar, and on to 'Atzmon.

Then the border turns and goes from 'Atzmon to the Vadi of Egypt and along it to the Sea.

passed toward 'Atzmon, and went out at the Vadi of Egypt, with the border ending at the sea; this will be your southern border.