Hello, I would like to know if Fitness / Pool / Spa are paid activities or included in the price of the room...
Fitness and pool (great) are free for Hotel guests. Spa services like massages, therapies or tanning are charged separately.
You would have to check your specific booking but if you are booking into hotel then access to spa etc are included. There are residences as well as hotel rooms however and I don't know if it is included with those - my guess is yes. They are very attentive and will answer your query quickly - just send them a mail or phone them!
Get an answer from Hotel Mont Cervin Palace staff and past guests.