We visited the ruins twice, once using the tour which took us from San Cristobal De Las Casas to Palenque and then I forced everyone out of bed early the next morning to view it before all the tour buses arrived.
Palenque Tour from San Cristobal De Las Casas
If you are anywhere near Palenque then I highly recommend visiting this archeological site. From San Cristobal there are one day tours.
Orquideas Moxviquil (San Cristobal De Las Casas)
This is the tale of how we enthusiastically decided to go for a bush walk and then I ended up dragging the family on a 2km trek up a steep mountain without food or water supplies #mumfail.