Las Vegas is all about nighttime entertainment, so the spas get overlooked quite a bit. The Strip is actually pretty dreary during the day, but it comes alive at night. So avoid the oppressive heat and plan a spa day for your girlfriends. You don't have to do everything at the hotel where you are staying. In fact, some of the best spas are at other hotels, and there are some pretty amazing package deals even if you aren't staying at the hotel. The spa at Wynn Las Vegas allows guests who are not staying at the hotel. Definitely call and let them know you are a group celebrating something special to see if they can set you up with a deal on day passes and treatments. You can also find day passes for nonguests at Treasure Island, Caesars Palace, and Bellagio.
