Steve, the owner of this site can set you up with a private van service. I imagine it is USA Transfers who we use all the time for Airport to resort transportation and would highly recommend for that service. Contact Us Its on the front page of Cancuncare.com I have also used Tino Genchi (a taxi van driver based out of Playa Del Carmen). He is a really nice fun guy, speaks great english and has hauled us all over the area for years. His email is tino_genchi at Hotmail.com A couple years ago Tino took us to Akumal and got us setup with chairs and fins. Its very nice to have a "guide" to help you find the right people and places. The cost of the private van services are typically very similar to what you would pay to rent a vehicle and you get so much more.