School children climb aboard HQS Wellington
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Grant boost for convoy ship HQS Wellington

5 February 2013 Last updated at 16:30 GMT

Convoy ships which escorted vital supply vessels across the Atlantic and fought off German U-boats were crucial in helping Britain win WWII.

Now, there is only one left afloat - HQS Wellington (formerly HMS Wellington) - and it has been on the River Thames next to Temple Tube station since 1948.

With the help of a heritage grant, members of the public will have the chance to climb aboard and explore what is frequently described as one of London's ''hidden gems''.

Footage courtesy of British Pathe.