Planning a trip to Laguna Bacalar

Orientation -- Driving south on Hwy. 307, the town of Bacalar is 1 1/2 hours beyond Felipe Carrillo Puerto, clearly marked by signs. If you're driving north from Chetumal, it takes about a half-hour. Buses going south from Cancún and Playa del Carmen stop here, and there are frequent buses from Chetumal.