135.4 miles.
Map here :http://maps.google.co.uk/maps?rlz=1C1CHIK_enGB517GB517&um=1&ie=UTF-8&gl=uk&daddr=Nelspruit,+South+Africa&saddr=Emalahleni,+South+Africa&panel=1&f=d&fb=1&dirflg=d&geocode=KcnKIVZP7eoeMdbvKsW972Yl;KTknPo0VSugeMfigKTSoDKV6&sa=X&ei=PqyYUdqJFe2l0wWGwIGABg&ved=0CDIQ-A8wAA
This is a Simple Dialog Demo.