The Gulf of Aqaba is about 100 miles / 160 kilometers long and 10 to 17 miles / 16 to 27 kilometers wide, forming a large portion of the geologically-active (see Earthquake!) Jordanian - East African Rift Valley system. From the perspective of Bible History, the Israelites spent much of the Wilderness Journey just to the west of the Gulf of Aqaba, and Mount Sinai, where Moses received The Ten Commandments from God, is only about 50 miles / 80 kilometers from the waters of the Gulf of Aqaba.
Fact Finder: What did Solomon build at Ezion-Geber, on the Gulf of Aqaba?
1 Kings 9:26