Police have located the two men and their boat who went missing in waters south of Port Lincoln.

About 10.20pm on Wednesday 10 September, the men on board the boat made contact with Police.  Police worked with other rescue services overnight to determine the exact location of the boat.

Water Operations Unit has headed out to Salt Creek on the south east coast to assist the men and is currently towing the boat towards Victa Harbor.

Tony Higgins and Derek Robinson, 57 and 48, left Coffin Bay in a 30-foot wooden hulled fishing boat bound for Goolwa about 3pm last Thursday 4 September.

They reported engine trouble to a friend about 11pm on Friday and advised they were going to divert to Kangaroo Island.

When no word had been heard from the men, the friend raised the alarm on Sunday, and a massive search was launched.

With the assistance of aircraft from the Australian Maritime Safety Authority, Royal Australian Air Force and Kangaroo Island and Volunteer Marine Rescue the total search area covered more than 103,000 square kilometres, but was called off last night shortly before the missing men made contact.