Yes, it would be cheaper to drive and stay. That is the point I am trying to make to my dive buddy/finacial backer!
My preference would be to go to Playa del Carmen for a week, take a few days to dive the cenotes and take the ferry over to Cozumel to dive a day or 2......... then drive to the ruins, visit Coba again, spend the night up by Chichen Itza and visit
Ek Balam, too. But this is MY preference. Less diving, more topside culture stuff.
He wants to go to Cozumel for the full week with a day trip over to do the ruins. I am trying to convince him that MY plan is better. (We have been to Cozumel 5 times, yes, I know the reefs are great)
robin