You have 3 options if you don't want to rent a car. 1. Take a taxi from the airport to Chuburna, I would guess it would cost about 700 pesos. 2. Reserve transport with William Lawson Driving Service, his email is lawson_william@hotmail.com or 3. Take a cab from the airport to the Merida bus terminal for Progreso (Calle 62, between 65 and 67) and when you get to Progreso take another bus to Chuburna. This may or may not be convenient late at night depending on schedules, and you may not want to be overwhelmed with logistics the minute you get off the plane! Here is our article about bus transportation: http://yucatantoday.com/en/topics/yucatan-bus-lines-and-taxis and here is our article on the beaches: http://yucatantoday.com/en/topics/beaches-gulf-yucatan