Kingleds,
Two years ago my friends spent a whole month in Zambia helping with everything, building schools, helping in medical centres (weighing new born babies!!), teaching health classes. She had the most amazing time & found it really grounding. She sorted it all with African Impact. She paid quite a bit for the project as a whole & flights & they provided accomodation & food. She said it really was the best thing she's ever done.