As we began our research in preparation for our year of travelling SA, my mom stumbled on something called "volunteering" or "Workaway". All around the world there are hosts of places willing to accomodate volunteer workers in exchange for accommodation and food. We decided to create a profile on a specific site we found: http://www.workaway.info/
My mom sent out messages to a list of hosts we were interested in, and very soon we got replies!
There are a few opportunities available; we hope something works out!!