Bacalar is in southern Quintana Roo, about 40 km from Chetumal and the border with Belize. It is known for the Bacalar lagoon, a freshwater lagoon roughly 50 km long, called the lagoon of seven shades because the white sand bottom and varying depths create bands of blue, turquoise and green. The water is calm and warm, good for swimming, kayaking and boat rides.
The village, with quiet streets, sits on the lagoon shore around the San Felipe fort, built in the 18th century against pirates who came up the rivers. To the south are the Cenote Azul, a deep dark-water sinkhole, and the Canal de los Rápidos. In the shallow bottom of the lagoon live the stromatolites, bacterial formations among the oldest life forms on Earth, which require visitors to take care.
Chetumal, the state capital, is a trading city on Chetumal Bay, with a long malecón and the Maya Culture museum; nearby are the Kohunlich ruins with their stucco masks. On the coast, about 140 km from Chetumal, Mahahual is a fishing village with white-sand beach and reef, in the region called Costa Maya.
This destination brings together 3 cities: Bacalar, Chetumal, Mahahual.