I'm heading to Cancun next Tuesday and just started looking into these Chichen Itza tours. Any recommendations on which one to take? Not sure if all tours are created equal. The tour would be for me and my girlfriend and possibly one or two others if they find this type of thing interesting enough to pry them away from the beach. This is my first trip to Cancun so I'm somewhat clueless on this. I'm staying at Moon Palace if that makes a difference. Any help would be appreciated.