The duo traveled the country in a non-air-conditioned pickup truck in sweltering heat doing interior jobs.

FORBES: BY ANURADHA RAGHUNATHAN

The heat got us moving the next morning, and we jammed into a boksi, a brightly-painted pickup fitted with benches, heading north to where we planned to rejoin the Nile and find traces of the upper reaches of the ancient Egyptian Empire.

WSJ: A Father-Son Vacation in Sudan, Africa