Hampstead Heath is an ancient heath in London, spanning 320 hectares. This grassy public space sits astride a sandy ridge, one of the highest points in London, running from Hampstead to Highgate, which rests on a band of London Clay. From Wikipedia
Women’s rights activists staged a dramatic protest at the male-only pond, highlighting tensions over the City of London Corporation’s adherence to its gender self-ID policy despite a Supreme Court ruling.