Rescue crews searching for man missing after dingy capsizes off Cape Douglas in South Australia's South East The scene at Cape Douglas where a man lost his life after a boat capsized. Picture: Frank Monger Source: Supplied A search is under way for the missing man. RESCUE crews are searching for a man who is missing after a boat capsized off Cape Douglas, in the state's South East, this morning. The small dingy overturned about 200m offshore of Cape Douglas, about 10km west of Port Macdonnell, about 6.45am. One man on-board the dingy was able to make his way back to shore, however a second man on-board is missing. Police, with the help of local boaties, are searching the waters. State Emergency Service crews have also been called in to assist. Seas in the region were reported to be 1-1.5m, with a south-westerly swell of 2-2.5m, according to Bureau of Meteorology forecasts. West to south-west winds were forecast to be up to 20 knots early in the morning. Originally published as Man missing after boat capsizes in South East