From the Brockwell parkrun website:

"Due to a festival and preparations for it there will be no Brockwell Parkrun on 1st or 8th June.  There are lots of other parkruns on in the area, and on 8th June quite a few Brockwell parkrunners are planning to visit Bushy Parkrun.

Also, July 20th will be cancelled due to The Lambeth Country Show.

All is on as usual this Saturday, May 25th."