Federal Agency Shuts Down Excavation on Yucatán Dunes

Federal environmental inspectors have sealed off a stretch of dunes in Chabihau, a small fishing port on Yucatán’s north coast, after social media posts showed heavy machinery digging up sand along the shoreline.

Mexico’s Ministry of Environment and Natural Resources, known as Semarnat, sent inspectors to the site along with police from the municipality of Yobaín after images circulated online showing excavation and sand extraction in the dune zone. By the time authorities arrived, the machinery was already gone.

Federal officials returned with drones and specialized equipment to assess the damage. After confirming harm to the coastal ecosystem, Semarnat placed closure seals on the property, barring further work there.

Chabihau sits roughly 90 minutes from Mérida on a stretch of coastline known locally as the Costa Esmeralda, prized for its calm, clear water. Like much of the Yucatán shoreline, its dunes double as a natural buffer against storm surge and a habitat for coastal plants and wildlife — which is why unauthorized digging draws a federal response rather than a local one.

Residents say this isn’t Chabihau’s first brush with environmental and land-use trouble. Neighbors have also reported other irregularities in the port, including land occupied under falsified documents, blocked beach access, and illegal clearing of nearby mangrove stands, according to accounts shared with local press.

The case adds to a run of dune-related disputes along Yucatán’s coast this year. In Chuburná Puerto, west of Progreso, a much larger development project was temporarily shut down after Semarnat and Profepa found similar damage to protected wetland and dune habitat, a case that remains under federal review.

Yucatán’s coastal dunes are protected under federal law because of the buffer they provide against hurricanes and northers, the strong seasonal winds that batter the Gulf coast every winter. Removing sand or vegetation can accelerate erosion, a problem already affecting beach towns like Chelem and Progreso, where the sea has crept closer to homes and businesses in recent years.

No individual or company has been publicly identified in connection with the Chabihau excavation, and Semarnat has not said whether it plans further administrative action beyond the closure. The agency’s inspection remains open.

Chabihau: Facts, Figures and History

Chabihau is a small fishing community on Yucatán’s north coast, part of the municipality of Yobaín. The municipal seat of Yobaín sits about 15 kilometers (9 miles) south of the port itself.

Academic researchers have studied the community since at least 1970, when a report published by Mexico’s National Institute of Anthropology and History described Chabihau as a peasant fishing community, part of a broader study of the socioeconomic conditions in Yucatán’s henequen-producing region.

Fishing remains central to the local economy. The port shares a “puerto de abrigo,” or sheltered harbor, with the neighboring municipality of Sinanché, where more than 400 fishermen have worked in recent years. Residents have periodically pressed both municipalities for basic services at the harbor, including trash collection and lighting.

The community sits along a stretch of coastline often marketed as the “Costa Esmeralda,” named for its shallow, clear, emerald-toned water. Chabihau is roughly 90 minutes from Mérida by car, about 15 minutes from Telchac Puerto and five minutes from San Crisanto. Mangrove lagoons near the port are home to flamingos, pelicans, herons and, according to area residents, crocodiles.

The Maya ruins of Xcambó, an archaeological site associated with ancient salt production and trade, lie about 26 kilometers (16 miles) from Chabihau.

Like much of Yucatán’s Gulf coast, the dunes fronting Chabihau function as a natural barrier against storm surge and the strong winter winds known locally as nortes. That protective role is why federal, rather than municipal or state, authorities oversee dune conservation — and why unauthorized excavation, as reported this week, falls under Semarnat’s jurisdiction rather than local government’s.

Fast Facts

• What happened: Semarnat sealed a property in the Chabihau dune zone after unauthorized sand excavation
• Where: Chabihau, a fishing port in the municipality of Yobaín, Yucatán
• Who responded: Semarnat inspectors and Yobaín municipal police
• How they confirmed damage: Drone survey and specialized inspection equipment
• Other reported issues in Chabihau: Falsified land documents, blocked beach access, illegal mangrove clearing

With reporting from Diario de Yucatán