There are basically three things to do in Costa Maya, Mexico – well, maybe 4 if you count “Staying on the Ship”. If this is your first time here, I highly recommend a tour to the Choccoben Mayan Ruins. The ruins are about 1 hour from the port. Discovered in the 1970’s, the ruins were excavated and ready for visitors by the 1990’s. Those ruins are the reason that this location was developed as a cruise port.
With that being my number one recommendation, the second thing to do is to visit the nearby fishing village and beach in Mahahual. There is a dirt road that connects the port area with this little village and transfers are available via a shuttle between the port area and the town.
The 3rd option is to walk off the ship and enjoy the port area shopping, restaurant and pool area, which is what I did since I have been here on several occasions previously. The port area has shops and several restaurants. There is a an aviary and a dolphin swim experience that quite frankly I think has too small an enclosure. There is a tequila tasting, restaurants, jewelry shops and gift shops galore. I suppose the with the opening of the water-park and zip line course that is a few block from the port area, that might count as a 5th option.