Thirty or so years ago I was staying for a few days with a friend who lived in Antwerp, when I was struck down by illness. I was admitted into a local hospital and operated on for appendicitis.
I have no complaints about the treatment I received, which was prompt, successful, and of course free of charge. But linguistically it was an interesting experience. The surgeon who operated on me spoke English with me. With the hospital chaplain I had to talk in French. But the nurses only spoke Flemish. Flemish is of course the same language as Dutch. My Dutch, though not nonexistent, is not very good. I remember being struck by the way the nurses pronounced the word for ‘soap’, zeep. I knew that this was basically zeːp, though in the Amsterdam-Rotterdam pronunciation to which I was accustomed the vowel tended to be realized as a closing diphthong, zeɪp. But in Antwerp the diphthongization was in the other direction, a Swedish-like zeəp. (See the Wikipedia account of Dutch phonetics.)
Afrikaans is like Flemish in this regard (though in that language the word for ‘soap’ is spelt seep). According to Wikipedia, in Afrikaans
/oə øə eə/ are also transcribed as long monophthongs /oː øː eː/, though it's not accurate to do so. /oə/ and /eə/ are also commonly realized as [uə] and [iə] respectively, and such pronunciation is already considered standard. In Western Cape /oə eə/ can also be pronounced [uː] and [iː] respectively.
I was thinking about this in connection with the Pistorius case currently in the news. The victim of the shooting was called
Reena Reeva Steenkamp. Her surname is obviously Afrikaans (steen = ‘stone’), though I have no idea whether her first language was Afrikaans or English; apparently the family comes from the Western Cape. But I did notice one or two BBC newsreaders pronouncing her name as ˈstɪənkæmp rather than the spelling pronunciation ˈstiːn-. I think that the Afrikaans vowel in question is quite often mapped onto English NEAR ― perhaps someone can elaborate on this. The writer J.M. Coetzee, according to Wikipedia, is kʊtˈsiːə or kʊtˈsiː, though I’m sure I have also heard kʊtˈsɪə.