This cultural analysis would explore one of the more unexpected proposals in the Heath's five-year plan: the exploration of additional sauna installations beyond the existing facility at Parliament Hill Lido, with an anticipated timeline of 2027/28. The article would examine how London's "citywide sauna obsession" is creating new pressures on protected landscapes, and how the City of London Corporation is responding to wellness trends while maintaining its conservation mandate. It would balance this against other commercial proposals—padel courts, pickleball, corporate events, filming—asking fundamental questions about the appropriate level of commercial activity on charitable trust land. The piece would feature perspectives from regular Heath users, conservationists, and the Corporation's committee members on where to draw the line between public amenity and landscape protection.