Quintana Roo is a state located in the southeastern part of Mexico. It is bordered by the Caribbean Sea to the east and the states of Yucatán to the west, Campeche to the southwest, and Belize to the south. The capital of Quintana Roo is Chetumal and the state is known for its beautiful beaches and tourist attractions such as the Mayan ruins of Tulum and Chichen Itza. The answer to the crossword puzzle is 'ROO', which is the abbreviation for the state of Quintana Roo.