Fodor's Expert Review Cenote Samulá

Perhaps the most photographed cenote in the Yucatán, this sinkhole is across the road from another one, Cenote X-Keken, about 5 km (3 miles) west of the main square. A narrow stairway leads to crystal clear water where tree vines dangle overhead and hundreds of birds nest between the stalactites. Don't be alarmed by the tiny Garra rufa fish that nibble at your feet—they are actually eating away the dead skin cells. Guides offer tours for tips.