When I visited mexico, they accpeted US money.

Taxis are expensive in Cancun.Take an Airport-Shuttle to Playa del Carmen…Or
Take a bus from the airport to Cancun city and then take a taxi to Playa del Carmen.

The hardest part of the journey to Cancun (aside from your initial airport check-in) is getting from the luggage carousel to your transportation. Make sure you know who your transport is and find them on the outside, as that is where they will be! Unless you are looking for a timeshare, free meal or looking to burn time and money on your vacation don’t stop to chit-chat about booking tours and such. There is plenty of time for that after you get settled in.

There are 2 companies officially licensed by Cancun Airport to provide the transfer service to the hotels in Cancun or the Riviera Maya. One is Gray Line and the other one is T.T.A. Both have a selling booth right after the Customs Service. Prices are fixed by the Airport and are not negotiable. The two companies offer shuttle service and also private transfer.

There are transportation firms that provide to and from the airport for a reasonable price. Beware of touts who surround the traveler when the traveler comes out of customs clearance…. If you proceed straight, you will find the official information center who can guide you the options on transportation.

There is also a first class bus service from the airport to both the ADO bus station in Cancun and to the one in Playa del Carmen. If you are going to Puerto Morelos, you can arrange being dropped at the appropriate intersection on the way to Playa. To get to the buses, go outside the main building and turn right. Head up past the end of that building and find the appropriate bus for you.

Beware of leaving Mexico without enough money. The Mexican Government charges a travel tax of around 500 pesos/46 U.S. Dollars to leave the country from the airport. Most major air carriers may already have the travel tax charged to the price of the ticket; though it is highly recommended that travelers check this before leaving to/from Cancun.

Also try not to go through security too early. Food and drink prices almost double and you can’t easily go back.

My last time there, taxis are not allowed at the airport but sometimes you can get one when the taxi is dropping somebody off. They are not allowed to hang around. This restriction could have changed.