Dominican Republic's tourism coast grapples with massive sargassum influx

Massive blooms of sargassum originating off Brazil are drifting across the Caribbean and blanketing the beaches of Bávaro, Punta Cana and nearby resorts. Local officials and environmental groups say the algae threaten coastal ecosystems, release methane, carbon dioxide and heavy metals as they decompose, and force continuous, costly beach‑cleaning operations.

The surge has tangible economic effects. Regional studies estimate tourism demand can fall 7%‑35% during heavy influxes, with some Mexican sites losing up to 60% of visitors. In the Dominican Republic, the influx reduces tourist arrivals, cuts fishing income for coastal communities and raises public‑health concerns linked to contaminated sea water. Experts call for integrated policies that go beyond surface cleaning, such as offshore collection and converting the biomass into bio‑fertiliser, to turn the “silent threat” into a sustainable resource.

Authorities and industry players continue to coordinate daily removal efforts to preserve the image of the Caribbean’s premier holiday destinations while seeking longer‑term mitigation strategies.