Johannesburg - The public can help search for a missing South African catamaran crew through an online tool, their families said on Wednesday.
The families fear for the yachtsmen's safety, as they last made contact via satellite phone on 18 January and missed their estimated date of arrival.
The catamaran, Sunsail RC044-978 set out from Cape Town for a delivery trip to Phucket, Thailand, on 14 December. The delivery was for US-based world maritime leisure business Tui Marine.