communal showers in London

They’re turning cyclebeat into a Boom cycle - I hope this doesn’t mean we lose the open showers. Has anyone been to boom cycle, what are the showers like?
 
Anyone up for a swim and a shower somewhere in London next weekend 11/12 November?
 
I’ve cancelled my Fitness First membership but it’s still good until early December. Are there any open showers left in their London locations? I never did visit them all.

I also a Fitness Frist member who is keen to find a FF london gym with open showers...