He has gone with Egon Falk and his team on a crusade.
Shirati is a town in North Mara, Tanzania on the shore above Lake Victoria, near the border with Kenya. It has a population of c. 50,000. (WIKIPEDIA)
photo credit: Don Bryant
If you are looking for him bad luck. He is there until next week with no Internet, just his very cheap Nokia phone :)
Hopefully there will be some good photos to follow...