After a long bus journey, a flight, a long wait at the unlovely Cancún airport and another longish bus journey, I finally made it to Mérida on the northwest corner of the Yucatán peninsula. I had to book my internal flight from DF to Cancún before I knew my itinerary, so I ended up taking the bus from Oaxaca to DF, spending the night in DF and then flying to Cancún and taking a four-hour bus to Merida.