Quintana Roo ramps up sargassum defenses as massive bloom approaches

The Mexican Navy and state authorities in Quintana Roo are intensifying efforts to combat a projected massive arrival of sargassum algae along the Caribbean coast. By early 2026, inter‑agency actions have already cleared more than 63,000 tons of the macroalgae, and officials have installed about 9,000 metres of anti‑sargassum barriers at key tourist spots such as Benito Juárez, Puerto Morelos, Playa del Carmen, Tulum and Mahahual. Plans call for adding over 16,000 metres of additional barriers before the end of the year.

At the same time, the Navy temporarily withdrew its fleet of eleven coastal sargassum‑collecting vessels and one ocean‑going ship for preventive maintenance, a pause expected to last 15‑30 days. The withdrawal coincides with forecasts that the Atlantic “Great Sargassum Belt” could deliver up to three million tons of algae toward the Caribbean. To offset the reduced sea‑based capacity, heavy equipment, excavators and dump trucks are being deployed on the shoreline for land‑based removal, with the collected waste destined for local landfills.

Officials emphasized a shift toward preventive measures that trap the algae at sea, aiming to protect the state's tourism economy and coastal infrastructure.