Depends on how deep underwater they are. They technically could be blow a source of hot spring water.
... then again they could tap into some volcano vents in an undersea trench if they can survive the pressure.
Don't underestimate the power of Abyssal workers. They'll get it done in an 'iffy.
Wo-chan, what's wrong?This lump of junk is a piece of shit.IGh.. No, Wo. You shouldn't use such coarse language.Because we aren't humans.Want to soak in a hot spring!!!