We went two weeks ago, booked with Comfort Suites, then bought another wrist band at Atlantis for our 5th person. Ended up costing around $380, but it was well worth the money. It was the highlight of our trip. The weather was around 75 degrees and sunny. From what I understand, the water is not heated, but it was plenty warm enough (from someone who likes water around 90 degrees at that). We would get a little chilly walking around in our wet suits later in the afternoon, but it wasn't bad and we were fine staying in the water.