Probably heaven on earth for those guys who loves training. You can do most sports that you know about, and probably some that you dont know about as well.
This complex is located in Summerlin about 10-15 minutes ride off strip and provides you with a full day experience if you want to. You can do all sorts of sports, for example ball sports, swimming (inside or outside), climbing and of course hit the huge gym.
They have a great cafe downstairs which can provide you with all the naturals and healthy products you need to get it going. And this is probably one of few places in "merica" where you cant buy a coke or other unhealthy stuff at.
Come as you are, train what you want, and relax in the designated spa area afterwards, feeling awesome of what you just achieved!