"Bluewater Bay Tourism – Bluewater Bay, Swartkops, St George's Strand, Amsterdamhoek & Redhouse – all part of the Nelson Mandela Metro." Bluewater Bay Tourism (website). http://www.bluewaterbay.co.za/bluewaterbay.php. Discusses Swartkops River Sailing. Endorsed and supported by Nelson Mandela Bay Tourism and the Eastern Cape Tourism Board. Retrieved 2007-01-28.
"Feature Article – January '05 – Sailor of the Year". Sailing: Inland & Offshore. http://www.sailing.co.za/oldfeat/2005/fa_2321.htm. Optimist Champion Justin Onvlee, from RYC. Retrieved 2007-01-28.