The Ruta Río Bec, a straight 270km road, runs east to west between Chetumal and Escárcega, connecting some thrilling sites which have only recently emerged from obscurity. Their stone remains are scattered between the great kingdoms of Petén and the sophisticated cities of the Yucatán, between the sumptuous classical world and the last glimmers of Mayan culture. This pilgrimage into an unknown and untamed territory dotted with treasures may turn out to be one of the most poignant memories of your trip.