The old bowling green in Clissold Park has recently become a martial arts zone. Of particular interest is the modern hybrid form practiced by two white-tracksuited youngsters. It looks to be a combination of tai chi, judo, robotic dancing and generally hanging around looking bored. Quite how this form would fair in straight combat is hard to say, though the bright white robes/shellsuits might be off-putting enough to an attacker for the martial artists to leg it in the other direction.