Kestrelflyer's award rates are calculated by zone. All flights connect to and from the Mauritius hub (Sir Seewoosagur Ramgoolam International -- MRU). There are interesting rates to South Africa and Madagascar. 

Max Your Milez

Air Mauritius and Air France/KLM Join Forces
Members of Air Mauritius' Kestrelflyer program can use their miles to redeem flights from Air France and KLM. Kestreflyer members can now also collect miles on the Flying Blue network. Flying Blue also have the ability to use their miles on Air Mauritius routes.

Details here: [in German]
http://biztravel.fvw.de/air-mauritius-meilen-bei-partnern-sammeln/393/111742/4070

Air Mauritius Kestrelflyer rates have been added to our calculator, try Johannesburg to Mauritius.