The two cities on the Yucatan Penisula with the best air service and the highest number of Sister Cities are Merida with thirteen Sister Cities and Cancun with ten Sister Cities. The driving time for this trip is 6 hours and 40 minutes according to Google maps. A tour could fly into one city and return to another. Or a cruise could service one end of the trip and fly from the other city.
Google Map Directions
https://www.google.com/maps/dir/Chichén+Itzá,+Yucatan,+Mexico/Mérida,+Yucatan,+Mexico/Tulum,+Quintana+Roo,+Mexico/Playa+del+Carmen,+Quintana+Roo,+Mexico/Cancún,+Quintana+Roo,+Mexico/@20.6826142,-89.3352639,8z/data=!3m1!4b1!4m32!4m31!1m5!1m1!1s0x8f5138b9a098f833:0xf70a67530750d45!2m2!1d-88.5683091!2d20.6791438!1m5!1m1!1s0x8f56715cab450d17:0x5dfc155715abeb09!2m2!1d-89.5925857!2d20.9673702!1m5!1m1!1s0x8f4fd40310e42a4b:0xeedc0db93ff9ab7!2m2!1d-87.4653502!2d20.2114185!1m5!1m1!1s0x8f4e4323d22d4e61:0xe8c10b783bab4adc!2m2!1d-87.0738851!2d20.6295586!1m5!1m1!1s0x8f4c2b05aef653db:0xce32b73c625fcd8a!2m2!1d-86.8515279!2d21.161908!3e0
