BBC News
By Graeme Ogston
Published
image captionThe survey team are examining every piece of timber on the ship s exterior
Perched on a pontoon above the chilly water of Dundee s Victoria Dock, surveyors are inspecting every section of one of the world s oldest ships.
HMS Unicorn has been a feature of the city since 1873, half a century after she was built at Chatham Dockyard in Kent.
The former training ship has weathered many storms, including almost being scrapped in the 1960s.
But 200 years of exposure to the elements, including the wind and rain lashing the survey team today, has left its mark.