Sadiq Khan proclaimed ‘London is Open’ after it was uttered Spanish, Polish, French, Romanian, German and Italian.
Runners took part in the annual Auld Lang Syne fell race. Here are the best dressed entrants...
London, Edinburgh and New York are among the cities ready to usher in the New Year with style.
A drunken New Year reveller who had a "lucky" escape after he plunged into a raging sea and almost triggered a rescue operation has been fined £90.
The 30-year-old, who was wearing a wetsuit, ploughed into a ferocious sea at Aberystwyth, mid Wales, as a swell sent 15ft waves crashing on the shore.
A friend alerted the coastguard who, with the town's RNLI, were poised to launch when he made his way out unaided.
By the time he re-emerged, police were waiting were waiting on the beach to arrest him for being drunk and disorderly. He was later given a £90 fixed penalty fine.
Edward Perkins, watch officer at Milford Haven Coastguard, said: "He was lucky, I'm surprised he got out. There was a huge swell up there at the time and there is more severe weather on the way.
"It's going to be quite bleak tomorrow and I would advise people to keep well away from the sea because we have a high tide as well."