Further detail is hardly required: Qumbu has only two streets running
North/South and (as best I can recall -- though Google now shows a few more) only three running East/West.
Qumbu is on the national road N2, just North of the Tsitsa River: a few miles to the east is the old Shawbury mission station, and downstream from there are the Titsa Falls -- 375 feet. And a few miles below that the Tsitsa and Tina unite and then join the Umzimvubu which has its mouth at Port St Johns.
Tsitsa Falls Copyright 1997 Photo by Marius Jonker
(This is on 1and1)