The first divers to inspect a A World War One German U-boat off the coast of Shetland, a group of islands between Scotland and Norway, say it's "in remarkably good condition".
The SM UC-55 submarine was sunk by the British Royal Navy in 1917.
The U-boat had been laying mines in the area before being forced to surface due to a technical fault.
The wreck site had been known about since the mid-1980s when scanning equipment picked it up, but Hazel Weaver, the organiser behind the dive, said that 10 years of planning had gone into the dive.
U-boats were used by Germany in both world wars, inflicting a heavy toll on merchant ships and military vessels.
Despite their prevalence, only four remain intact today, while many, such as the SM UC-55, lie on the ocean floor.