[Tagging] How would one tag a thermal bath AND sauna?

[Emil Linus Albrecht]

Hi,


I have an object, which officially considers itself a "Spa". It is a 
thermal bath, so "amenity=public_bath", "bath:type=thermal" AND a sauna, 
so "leisure=sauna". What would I tag this? Can I just double-tag this? 
I'd like it to stay one object, not have one for Sauna and Thermal bath.


What can I do here?

-Thank you, Emil