We hosted my wife's parents in Cancun and visiting Chichen Itza feels like a rite of passage when visiting the Yucatan Peninsula. Given my mother-in-laws mobility needs, Fernando was super helpful in securing a wheelchair for us in advance (which we were happy to pay for) and that made covering the site with her feasible. Fernando has extensive knowledge of the area and history and brought along an iPad with a number of helpful videos and pics to provide better understanding and context.