After getting tanned on the Playa del Carmen beach it was time to go inland. I took a bus to Valladolid. This peaceful city has some cenotes, sinkholes in the limestone ground that contain fresh groundwater. The Yucatán peninsula has many of these cenotes and some of them were used by the ancient Maya for sacrificial offerings. I walked the town and visited the cenote Zaci.
Next day I went to Ek Balam, a relatively non-touristy Maya site. I climbed the highest ruins and got an idea about how the former Maya city would have looked like. Back in Valladolid stomach problems kept me close to the toilet in the guesthouse for two days. I spend most of my time in the hammocks in the backyard (and on the toilet). When I was used to my banana-tea remedy, I was ready to visit nearby Chichén Itzá ruin site.