Nearly the death of me

I was born in Plumstead Rd so I know about all the places that have been mentioned. Went all the way through from infants to seniors at Dulwich Rd school. The baths were nearly the death of me. We were all told to float on our backs with our feet in the rails..Mine came adrift and I spun as I dropped down. The reflections gave me no idea where “up” was and I went unconscious. Luckily the teacher spotted me and jumped in fully clothed to rescue me.