An exploratory dive to assess the chances of recovering a sunken U-boat is to take place off the Donegal coast.
A gale forced the team to delay the exploratory dive
The vessel - which did not see any war action - sank while being towed from Scotland to Londonderry to be scrapped.
Derry City Council plans to raise the Nazi submarine - U-778 - which lies 16 miles north west of Malin Head in about 70 metres of water.
The aim is to house the boat in a museum where people can get a glimpse of one of the iconic vessels from WWII.
It is estimated there are about 150 of them lying off Malin Head - all vivid reminders of the Battle of the Atlantic during WWII.
'Literally brand new'
Even in the murky depths the outline of the U-boat is quite clear, with divers saying the aerials and periscopes are still intact.
Geoff Millar from Dive North, who is leading the dive, said a gale had forced his team to delay the exploratory dive.
Geoff Millar is the lead diver
"When they were towing it after the Second World War, it got caught in a gale off Malin head," he said.
"It sank while being on its way to being stripped.
"The U-boat was completed at the end of the war, so it never saw any real action - it was literally brand new.
"The war was over, so they said let's take it away and strip it. This boat is in excellent condition.
"We were down at this U-boat two years ago, and it still has its compasses, everything is still on it and it is fully intact."