The first port that we went to was Calica/Playa del Carmen. Calica is nothing more than a quarry, and DON'T buy from the sellers in the tents there. They are way too expensive, and they will beg. We opted for the XCaret tour which is actually in Cancun. Actually any tour in Calica takes you to Cancun or Playa del Carmen. All I can say about Xcaret is that if you want to wander around a lot, see "some" interesting stuff, then spend the rest of your time at a really small beach area, pay the money for it. About $51.00 per person. I was a little disappointed, and wished that we had just gone to a beach club in Playa del Carmen and hung out.