There are many synonyms that could be used in place of "African outing", depending on the context. For example, if the outing was focused on a particular activity like hiking or camping, some alternatives could be "African adventure" or "African excursion". If the focus was on exploring a certain region or cultural aspect of Africa, options might include "African exploration" or "African safari". Additionally, if the outing was more social in nature, some other possibilities could be "African gathering" or "African outing" with a specific descriptor like "African beach outing" or "African picnic". Ultimately, the best synonym will depend on the specific details and goals of the outing itself.