Has anyone taken the Tulum Ruins tour in Cozumel with a person in a wheelchair? My extended family is making a stop in Cozumel in October. There's 8 of us with one in a wheelchair. If we book the shore excursion from RCCL, they said they cannot verify that a handicapped accessible bus will be available until the day of the excursion. Are there other exursion companies that might have a handicapped bus/van available? Also, can a wheelchair navigate the ruins?