So Moses brought Israel from the Red sea, and they went out into the wilderness of Shur; and they went three days in the wilderness, and found no water. The wilderness of Shur - This was on the coast of the Red Sea on their road to Mount Sinai. See the map.
Related Commentaries of Exodus 15:22
Exodus 15:22
22 So Moses brought Israel from the Red sea, and they went out into the wilderness of Shur; and they went three days in the wilderness, and found no water.