on ship activities when docked?

[Califor6]

Are there different and discounted activities available on ship, during docked days, if you chose to stay on ship and not go ashore? I think that someone mentioned possibly discounts at spas?
(Carnival Imagination 4day to Mexico)

[missypriss19]

Yeah the Spas usually have specials on port days. Remember that the shops and the casino will be closed while docked. But you enjoy the pool and it not be crowded.:D

[OCruisers]

[B]Spas are about it for discounts on port days.[/B]