Deuteronomy 2:1 (ESV)

1 “Then we turned and journeyed into the wilderness in the direction of the Red Sea, as the LORD told me. And for many days we traveled around Mount Seir.

From Kadesh-barnea, Israel set out, at the Lord's command through Moses, in a southeasterly direction, away from the Promised Land on account of their disobedience. They spent many days travelling in the area of Mount Seir, the mountain range of Edom, south of the Dead Sea.