The Pirates Channel, known locally as the Estero de Chac, is a narrow waterway that connects Bacalar Lagoon with the Hondo River, and the tourism board notes that its shores are lined with stromatolites. The name comes from local history, which says pirates once used the lagoon as a hideout while raiding trade along this coast, and it is the reason the Spanish built the Fuerte de San Felipe above the town in the early eighteenth century. Today the channel is one of the most atmospheric corners of the lagoon. The water is narrower and more enclosed than the open lagoon, mangroves crowd the banks and the pace slows. The easiest way to see it is on a pontoon tour whose route takes in the channel along with cenotes and islands. This trip is rated 4.9 across more than 400 reviews, which puts it among the best-reviewed pontoon outings in Bacalar. Because the title names three kinds of stop, expect a mix of sightseeing and swimming rather than one long cruise, and ask the operator which cenotes and islands are on the day's route when you reserve.
Why it stands apart
Most lagoon boat trips stay in the open water, where the changing colours are the attraction. The Pirates Channel is about setting and story. The banks are close enough to see birds and mangrove roots, the light is softer under the trees, and your guide can point out the stromatolites along the shore, the living microbial structures that make Bacalar scientifically unusual. Look, but never step on or touch them, because they grow extremely slowly and damage is permanent.
How it fits with other outings
If you have already booked the main lagoon boat tour, this is a natural second trip rather than a repeat, because the emphasis is on the channel and the islands rather than on the colour gradient of the open lagoon. If you only want one pontoon outing, choose between the two on mood. The classic boat tour is the colour-and-swim trip, while this one adds a sense of exploration and a little history. Either works best in the morning, when the lagoon is calmest and the surface is clearest.
Practical points
Pontoon trips in Bacalar usually run for a few hours and include swim stops, so bring a swimsuit, a hat and a towel, and keep sunscreen to a minimum because it harms the stromatolites and the water. A rash guard and a mineral, reef-safe product are better choices. Carry a little cash for tips and leave valuables at your hotel.
Inclusions such as drinks and snacks differ between operators, so check what is provided, and read the cancellation terms in case the weather turns, since boats may be rescheduled when conditions on the lagoon are unsafe. Pair the outing with the fort in town to see both sides of the pirate story, one from the water and one from the ramparts.
What else to know
The channel is a good reminder that Bacalar's story is not only about colour. The lagoon sat on a contested frontier for centuries, and the fort, the channel and the Hondo River all belong to that history. If you enjoy the narrative side of travel, ask your guide to explain how the waterway was used, and look at the shoreline as you pass. Bring a small waterproof bag for your phone, because spray and splashes are common when boats pull alongside docks or islands.
What to expect
The experience
A guided pontoon trip through the Pirates Channel with cenote and island stops and time for a swim.
Best time
Morning, when the lagoon is calmest and the light is soft.
How long
Typically a few hours, depending on the operator and the route.
Tips
Bring a swimsuit, hat and towel, go light on sunscreen and do not touch the stromatolites along the banks.
Quick picks
- Best for
- Travellers who want a little history and scenery as well as a swim.
- Families
- Suits children who are comfortable around water; ask the operator about life jackets and age limits.
- Couples
- A calmer, more shaded alternative to the open-lagoon trips.
- Pair with
- The Fuerte de San Felipe, which was built to guard against the pirates.
- Time needed
- A morning or afternoon.
Good questions
What is the Pirates Channel?+
It is a narrow waterway, also called the Estero de Chac, that links Bacalar Lagoon to the Hondo River. The tourism board notes that its shores have stromatolites.
Why is it called the Pirates Channel?+
Local history says pirates used the lagoon as a hideout while raiding coastal trade. The Fuerte de San Felipe in town was built in the eighteenth century in response.
How is this different from the main lagoon boat tour?+
The main tour focuses on the open lagoon and its colours. This one takes in the enclosed channel as well as cenotes and islands, so it feels more like an exploration.
Can I swim on the trip?+
Pontoon trips in Bacalar normally include swim stops at cenotes or sandy shallows. Follow your guide and stay off the stromatolites.
What should I bring?+
A swimsuit, towel, hat and a little cash for tips. Use sunscreen sparingly, or not at all, to protect the lagoon.
