Cramond Island
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Cramond Island is one of several islands in the Firth of Forth in eastern Scotland, near Edinburgh. It lies off the foreshore at Cramond. It is 1⁄3 mile long and covers 19.03 acres. The island is part
Cramond Island from the air
Cramond Island with causeway on left and anti-boat pylons on right
Line of causeway and pylons at high tide
The ruined farmstead on Cramond Island
Boom (navigational barrier)
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A boom or a chain is an obstacle strung across a navigable stretch of water to control or block navigation. They are sometimes mixed with pile barrages.
Cramond Island
…at low water, allows easy access. This causeway runs at the foot of a row of concrete pylons on one side of the causeway, which were constructed as an anti-boat boom during the Second World War and are one of the most striking sights in the area. At high tide the path is covered by several feet of seawater which…
A boom blocking the River Foyle during the siege of Derry
Crusaders break a chain protecting the harbour (at left) in the siege of Damietta.
Boom towers in Norwich
Remains of the great chain that protected the Golden Horn