Joshua 15:2-4

Their south limit was from the farthest part of the Salt Sea, from the inlet looking to the south: From there it goes south of the slope up to Akrabbim, and on to Zin, then south past Kadesh-barnea, and on by Hezron and up to Addar, turning in the direction of Karka: Then on to Azmon, ending at the stream of Egypt: and the end of the limit is at the sea; this will be your limit on the south.