Is there a heated indoor swimming pool nearby? (We are traveling with a 4 year old)
Sorry, I do not know, write the hotel, they will let you know.
There are 5 star hotels near by, they for sure have such pools and most probably you are also welcome to use those pools, paying the entrance fee
No there isn't, I'm afraid.
Get an answer from Art Deco Hotel Montana Luzern staff and past guests.