Sonar scans of the sea floor off northwest Tasmania will get underway for a second day in the search for a missing man and a boat.
Thomas Courto hasn't been seen since October 18 when he set off from the town of Wynyard with friends Isaiah Dixon and Bree-Anna Thomas.
The bodies of Mr Dixon and Ms Thomas were found washed ashore at nearby Table Cape on Wednesday afternoon.
Air and sea efforts have been suspended and Tasmania Police will conduct an overview and assessment of the search on Tuesday.
A scan of the seabed, which on Monday failed to find any trace of the 17-foot yellow and white motorboat or Mr Courto, will resume on Tuesday.
Inspector Steve Jones has said it is unlikely Mr Courto is still alive.
Sonar scans have focused on an underwater area of some 340 hectares about three to four kilometres off the coast.
Police have asked members of the community not to join search efforts in the water due to rough conditions.
The trio, all from the northwest, were reported missing by family on the afternoon of October 18.
© AAP 2021