Japanophiles, meanwhile, should head to Trafalgar Square this weekend (19 September) for Japan Matsuri, an all-day party marking 150 years of friendship between London and Japan. Go with an appetite for food and fun, and dock your bike at Craven Street, to the north-east of the square. There will be music, dance, martial arts, taiko drumming and a huge karaoke contest, plus plenty of activities to take part in.