Beautiful place and hopefully it will be warm enough for you to go swimming. We did a visit with the dolphins, and my husband became a redhead because his bald head got sunburn when he forgot to put suntan lotion on it. It was fun because we had never done it before. One person was free under the Atlantis special deal and we paid for one person. They take lots of good photographs, but the price is really high. I mean HIGH.
We wandered all over the property. We took the rapids rafting (tubes) and was real fun, but if you cannot swim or have a small child make sure that they have a life jacket because it is easy to fall off the tubes.
I played ultimate X, triple play quarter, for several hours, not such a good pay table, but somehow I managed to hit two royals when dealt 4 to a royal at 10x for whopping $20K --biggest surprise hit ever.
When we got home found I am now on their mailing list getting various offers for tournaments, rooms, free play, etc. But cost of flying back is high from Vegas.