LINKS:
https://zoutpansberger.co.za/articles/news/6903/2008-11-28/local-doctor-part-of-pioneers-who-found-waterway-through-africa
https://www.zoutpansberger.co.za/articles/news/14672/2012-08-31/soutpansbergas-adventurous-dr-daan-marais-passes-away
https://zoutpansberger.co.za/articles/news/32668/2015-08-20/a-daughteras-tribute-to-an-adventurous-father
https://www.zoutpansberger.co.za/articles/news/47989/2018-08-21/first-trans-african-waterway-expedition-turns-60
