Jeremy McClure And Other Record Holders to Rottnest Island Courtesy of Rottnest Channel Swim Association, Rottnest Island, Western Australia. When Gerd von Dincklage-Schulenburg first swam from the shores of Western Australia to Rottnest Island, he kicked off the most popular competitively swum channel in the world – the 19.7 km Rottnest Channel. 307 solo swimmers, […]