From the deck, tick off architectural and historical glories as you sweep past: to your right, the Monument - Sir Christopher Wren's memorial to the Great Fire of 1666 - then Wren's towering achievement, dome-hatted St Paul's Cathedral.

BBC: A perfect day in London

Winslet and RocknRoll were at Sir Richard's Caribbean retreat Necker Island in 2011 when a fire devastated the Virgin boss's luxury home.

BBC: Kate Winslet and Nedrocknroll

Sir Oliver Popplewell - who chaired the inquiry into the 1985 Bradford City stadium fire which claimed the lives of 56 fans - said Hillsborough relatives should "move on" from the tragedy.

BBC: Hillsborough disaster: MPs sign motion over Sun sources

That is what the experience of Sir Bernard Crossland, a safety expert who led the inquiry into a disastrous underground railway fire in London in 1987 which killed 31 people, suggests.

ECONOMIST: Disasters

In 1991 he left his career in the fire service to become a professional yachtsman, when he was selected to skipper the 67ft steel yacht Group 4 in Sir Chay Blyth's British Steel Challenge.

BBC: Golding in the doldrums