No reservations are needed for Aqua Class cruisers to use the Thermal Suite. No fee. However, you will need reservations for the other spa services and pay fees.
Included classes include yoga, fitness, etc. No fee. You will have a menu to choose from.
I would not spend the money on the cabanas. Just go to the Solarium.
Freshly squeezed orange and grapefruit juices are available at breakfast in Blu.