I've had a silly idea, and figured I should get sponsorship for it: ride motorbikes from the most westerly point of the UK to the most easterly, during the night of the winter solstice.
Basically, we're to leave Land's End at about dusk on the 21st December and arrive at Lowestoft by dawn on the 22nd. Google reckons we need eleven and a half hours, I'm told we have twelve hours of darkness.
We'll be going via Stonehenge (it's designed for this time of year) and Trafalgar Square (whoo! big tree!). here's our proposed route.