Quick update from the Riviera Maya... Besides the classics of Chichen Itza, Tulum, Xcaret theme park and Xel-Ha aquatic park, Project Mayan Encounter has just designed two more daytrips that can be explored by wheelchair or scooter:
a trip to an orchid farm with ancient trees in the north of the peninsula; and visiting a Mayan community tucked away in the tropical rain forest, with a still-uncrowded archaeological site.
There are more details on their Tours page (scroll down to Arbol Sacrado and El Naranjal at the bottom of the Day Trips). Stefanie Baeker is always happy to answer specific questions and dedicated to support travelers who are interested in getting to know this area!