Take the toll road in the morning and drive directly to Chichen Itza (expensive, and have lots of change in pesos) The Mayaland is a beautiful hotel, (reservations please). If you stay there you can walk across the street to the back entrance of the ruins and spend most of the day. The food at the Mayaland is good, and they usually have entertainment. You can catch the night show at the ruins if you stay overnight. If the Mayaland is full you may wish to try the Hacienda Chichen. There are many restaurants in Piste, which is the town nearest to the ruins, which you may also which to visit.( tourist shopping) There is really not much to see along the way on the toll road, but, the next day if you return to Cancun you can take the slow road, and go to the city of Valladolid which is quite interesting. There are a lot of topes (speed bumps) on the old highway, which make going slow, but interesting...don't drive in the dark.