'Bay' in the Bible

Their southern border began at the tip of the Dead Sea on the south bay

Now the eastern border was along the Dead Sea to the mouth of the Jordan. The border on the north side was from the bay of the sea at the mouth of the Jordan.

The border continued to the north slope of Beth-hoglah and ended at the northern bay of the Dead Sea, at the southern end of the Jordan. This was the southern border.

When daylight came, they did not recognize the land but sighted a bay with a beach. They planned to run the ship ashore if they could.