@siberys mentioned some of my macro characters using a olympic size pool as a hot tub and I know that's a go-to for a big pool, and they are 25m wide by 50m long but they're only 3m deep, that's more paddling pool than hot tub
Listen it was that or the neutral buoyancy lab, and that one has the opposite problem of being too deep for most of your characters
Ah yes, the tank full of dry cleaning fluid...
checks something
Oh hey they make some that are just water. You learn more every day.
