i think the most local one is the one that takes place in lewisham high street, and the lewisham way war memorial.

more info on those two place's can be found on lewishams website.

http://www.lewisham.gov.uk/NewsAndEvents...Sunday.htm

going by that date not sure if its this sunday or next wens as lewisham have screwed up the date.
i would think its this sunday, but to double check phone the town hall.
02083146000