Police officers are appealing to the public for assistance in the continued search for Joachim Brolly, 59.
Mr Brolly was last seen at Torran Bay Hostel, Ford, near Lochgilphead, at the south end of Loch Awe about 3pm on Thursday March 9 when he was seen getting into a boat.
He is described as being white, 5ft 6in tall, of medium build, with short grey hair and clean-shaven. He was wearing navy trousers, a navy fleece and a navy jacket.