When the people of Anti-Nephi-Lehi arrive in the borders of the land of Zarahemla they stop and wait. The Lord had told them to come, but had not promised anything about the reception they would receive. They are therefore cautions and wait for a more formal welcome.
Geographic: The “coming over” suggests that the people crossed an elevation in order enter the land of Zarahemla. The topology of the land is consistent in the movement from the land of Nephi to Zarahemla, and the presence of the river Sidon flowing to the sea is even more suggestive that the land of Zarahemla is at a higher elevation, and that the headwaters of the Sidon must begin somewhere in this mountain range that these people cross over.