The Sutro Baths was a large, privately owned public saltwater swimming pool complex in the Lands End area of the Outer Richmond District in western San Francisco, California.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/places/parks/sutro-baths/en.wikipedia.org.md
On March 14, 1896, the Sutro Baths were opened to the public as the world’s largest indoor swimming pool establishment.
