The record for the longest windsurfing marathon is 71 hr 30 min and was set by Sergiy Naidych (Ukraine) at Radyschev Lake, Simerferopol, Crimea, Ukraine from 6 to 9 June 2003.
The record for the longest windsurfing marathon is 71 hr 30 min and was set by Sergiy Naidych (Ukraine) at Radyschev Lake, Simerferopol, Crimea, Ukraine from 6 to 9 June 2003.