Again with the "this is my first cruise" questions - thanks for bearing with me! Not only is it my first Disney cruise - it's our first cruise EVER! : )

Tell me all about the Rainforest Spa. What I'm gathering is that ASIDE from prebooking and paying for massage, you can get day passes (per person, per day) to this Spa where you can enjoy showers, hot tubs and special chairs and ???
**Correction - I'm calling it Rainforest - not sure why. LOL Is it Senses? Help!

Feedback please! I didn't think to ask before booking (not that it would have changed my mind) but is there no hot tube elsewhere on the ship?

What is the selling feature of this day pass? Not sure I'm getting it! LOL

TIA