I'm staying at the Parc 55 hotel in San Francisco. It does not have a pool, but the same chain runs the next door hotel, the Hilton Union Square, so guests in my hotel can use their pool. It is up on the 16th floor. Pictured above at night from the 41st floor...
Quite a nice pool area. No changing rooms other than bathrooms. But, there's towels, a large hanging out area and chairs, sunshades, and it is sheltered from the wind. The water is very warm, so it was not a problem to go for this dip at 5am in the morning before my meetings :-)
The main pool water was maybe 30 degrees, and the Jacuzzi.. too hot. Not sure how hot, but I could not stay more than a minute, if that.
Interestingly, it seems both Parc 55 and the Union Square hotels are in some kind of financial limbo... their owner has stopped paying loan payments, and has walked away. At least at the moment the hotels themselves still work though.
For more sauna and swimming stories, check out planetswimmer.com and saunablogger.cool websites! And of course the Planetcaver, and Planetskier blogs for other stories in Blogspot and TGR! The photos and text (c) 2023 by Jari Arkko. All rights reserved. I never take photos of other saunagoers or swimmers and visit when there is simply no one else or the facility has been closed or booked only for me.