Complex sentence: He remained with them over much of the next three years, herding camels, accompanying families on their annual migrations, travelling with a traditional salt-caravan to the oasis of El-Atrun, and twice working as a drover taking camel herds to Egypt.
Split into simpler sentences: He remained with them over much of the next three years. His experiences included accompanying families on their annual migrations, travelling with a traditional salt-caravan to the oasis of El-Atrun, and twice working as a drover taking camel herds to Egypt.