During my upcoming trip I'd love to spend one evening doing a leisurely walking tour to see the "best" of London's Christmas lights. We'd start about 6pm and could walk for a few hours. I'd like to know what a walking "expert" thinks of the following:
start at Trafalgar Sq to see the Norwegian tree and decorations
walk north up Haymarket street thru Piccadilly Circus
then north up Regent St
make a diversion east to see Carnaby Street
back to Regent Street
then east on Oxford Street.
Anything else close to this you'd recommend?