One of the largest submarines in the world is to pass through Manx waters today .
HMS Vigilant has completed a three-and-a-half year programme to refuel nuclear reactors and is heading out for sea trials.
The Trident submarine is twinned with the Isle of Man and is scheduled to sail close to these shores to give local people a chance to see her.
Details of where and when she'll surface are to be released shortly.
Marian Kenny reports.
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