A MONOLITHIC granite memorial stone, marking the 151 British lives lost in the devastating Boxing Day Tsunami, will be making its final journey tomorrow.

The 121-tonne block will be transported under escort from Poole docks, where it has been shipped from the continent.

Together with an articulated lorry, the abnormal load weighs more than 207 tonnes.

Dorset Police have warned motorists of possible disruptions, as the load makes its way along the A31, then out of Dorset onto the M27 where it will travel into London up the A3.

It is hoped the memorial stone will leave the port at 9am.

The 4.1 square metre block is set for London’s Natural History Museum.

Tanya Joseph, of Tsunami Support UK, said: “Effectively the memorial will be opened in a few weeks.

“The final design was the result of months and months of collaboration between the families and designers.

“We’ve had lots of town hall meetings and invited people to give their thoughts and comments. We are very happy with the result.”

More than 230,000 people were killed on Boxing Day, 2004, after a powerful earthquake under the Indian Ocean triggered a series of devastating tsunamis.

Massive waves, some reported almost 100ft tall, battered 14 countries in what became one of the world’s worst recorded natural disasters.

Michael Holland, chairman of the Memorial Board at Tsunami Support UK – who lost his mother, wife and daughter in the disaster - said: “The design of the memorial reflects the views and feelings of bereaved UK families, survivors and all those affected by the tsunami.”

The Department of Culture, Media and Sport (DCMS) gave a £550,000 grant to the project.