Spas in Las Vegas are legendary. Huge facilities where you can get lost in your relaxation for days at a time. Most spas allow for you to buy a day pass. Highly recommended if you need a break from gambling or if you have a red eye flight out of the city. Stay at the spa until it shuts down around 8pm (normally), grab a bite, then head to the airport fully refreshed.
All the spas are segregated by sex, but some of them have common areas where you can meet up with your opposite sex friend or partner.
The pool and hot tub area is amazing. Four varied temperature pools, a steam room, a hotter steam room, dry sauna, and cold room that snows. The only strange thing about this spa is that the pools are separate from the other steam and saunas so you find yourself walking to get from one side to the other.
The Aria Spa has all the facilities that Caesar's have but they have the added bonus of a shared sex outdoor warm pool where you can meet your friends to relax. You can gaze out at the view of the Aria pool and grounds. They also have two shared relaxation rooms, one is a salt room where you rest on vibrating chairs and the other is a very dark room with warm tile beds where you can find yourself falling asleep.
This spa is pretty nice also but pretty run of the mill. The one thing that stands out is the ability to go outside to a balcony that overlooks the pool. I think that Bellagio is consistently nice. Nothing mind blowing, but always a pleasure.
We have also been to the spa at Encore, Mandalay Bay, and Mirage. All are perfectly acceptable depending on what end of the strip you are staying on. Sometimes, it is just about convenience.
