You can do some trips by dugout canoe downriver from Bangassou to Bangui on the Oubangui River. The Catholic Mission is very friendly and will allow campers for a small donation. There is deposit to pay, which is refundable when one is leaving. There are few clear rules that can be applied to everyone on tipping. All in all a small amount is expected.
Meals typically consist of staple rice, fermented cassava or bananas with some kind of sauce.
Centres abound where the people's culture can be appreciated. The Musee de Boganda which showcases a variety of musical instruments is one example of such places. Precautions need to be taken against malaria and bilharzia.