In morning we went to Palenque ruins. The site is massive and you could spend a week seeing everywhere, so we stuck to the popular temples and plazas. This is definitely our favourite ruins so far - the setting in the jungle completely makes it. We then did a tour of the flora and fauna of the national park. We spent lunch in a secluded waterfall in the jungle, skinny dipping in the crystal clear waters.
Afterwards we drove to Campeche, which is an UNESCO fishing village, surrounded by old city walls. The plaza and surrounding rainbow coloured buildings were immaculate. It was like a film set. We went to see the former high society house at number 6, which was disappointing as there were only a few rooms to see. Near the plaza there was also a music and light fountain show that went on for an hour. It's not the Bellagio, but it makes a nice place to chill out.