Getting into Playa del Carmen is very easy, with most people using taxis to get around. These taxis are almost everywhere you look, and in all hotels. It is almost always possible to get a taxi in Playa del Carmen.
Taxis are easy to get. Usually they are small Nissan or Toyota type vehicles, rather comfortable for 3 people, really crushed by 4. Drivers rarely speak English, but with a few words like how much (how much) and the name of their destination they usually do not You will have a problem. Taxis are the usual way for tourists to get around, except when they do tours, they usually offer transportation as part of the tour package.