The ruins at Xcambo, Yucatan, Mexico. As described on a Mexican travel web site:
Xcambo is located near the coast 50 km from Merida via highway 180, and only 6 km from Telchac Puerto, in the State of Yucatan, Mexico. Xcambo its a curious combination of Mayan ruins, a Catholic chapel and a small freshwater spring. Its eldest occupation origin dates back to 150 BC to 300 AC. According to archaeological theories, it was an important city that provided salt to the Mayan cities of Izamal, Oxkintok and Ah Kim Pech. They were also great artisans with an important handcraft production and exchanged goods with Mayan cities in Campeche, Tabasco, Guatemala and Belize. Archaeologists have found a great similarity in its buildings with the ones in Izamal, making them believe that Izamal Mayans used this site as a port. Also Xcambo counts ten natural springs.