We decided ahead of time to not book any shore excursions and to explore on our own. I can tell you on my next cruise I will be much smarter. We took a bus into town and for me it was culture shock. It felt like something out of a bad movie. I must say I have never been to Mexico and was expecting to see something out of television advertisements for resort vacations. Progresso is a new port and the town is very poor. We rode into town on a bus that was probably 30 years old with no air conditioning and the front windshield was cracked. When we first entered the town, we passed two military type people standing on the corner with their automatic riffles at their side. We got off the bus at an area that was fenced in with many vendors. I did enjoy the shopping and trying to bargain for deals even though I probably did not get a big bargain, I walked away feeling as though I did. We ventured out into the town on our own and I was amazed at how the people live. I am not trying to come off snobbish here, but I am surprised this port was on a cruise vacation. Other people in our party went on the shore excursions and had a wonderful time at the Aztec Ruins.