To Regent's Park one day I took my love with me,
To pass the time away in skating merrily.
When on the gliding stell she whispered once or twice
Oh George, my George, pray don't reveal
Our flirting on the ice!
Ice skating was popular in Regent's Park back then.
Forty people had drowned ten years before this song was written in 1878. The lake had been made shallower since then.
Poetry Atlas has a poem about the disaster.