I have my tickets. I have my hotel. Now what to do? I know I want to have a relaxing vacation. But I do not want to be the total tourist. I'm hoping that I can learn from others posting what is good and not so good. Without taking everything to literally, as far as others experiences. I'm tempted to rent a car because I will have my children with me. And having to wait for public transportation? Well, I will keep reading. I know one day will be at the ruins. A water park. And Cozumel.