Unprecedented Seaweed Invasion Triggers Massive Price Cuts in Caribbean Hotels
The Caribbean tourism industry is grappling with an unprecedented challenge as record quantities of sargassum seaweed swamp beaches across the region. This has compelled hotels to slash prices by up to 40% to lure visitors. Data released by the University of South Florida on June 2, 2026, reveals that nearly every region of the Caribbean and Gulf experienced record-high sargassum levels in May. The year 2026 is shaping up to be the worst since monitoring began.
The massive influx of this brown macroalgae has severely impacted Mexico’s Quintana Roo region. This includes popular destinations like Cancun, Tulum, and Playa del Carmen, where hotel occupancy rates have plummeted year-on-year. The decomposition of washed ashore sargassum releases hydrogen sulfide gas, which smells like rotten eggs and can cause breathing problems. This has been a significant factor in driving tourists away from affected beaches.
Researchers at the University of South Florida predict that sargassum volumes will continue to surge in June, potentially making 2026 a record year by summer. The crisis is tied to climate change and nutrient pollution, with warmer sea surface temperatures and increased nutrient outflow from the Amazon River basin fuelling the unprecedented blooms.
Local authorities have responded by deploying containment barriers and collection teams. However, the magnitude of the problem poses long-term risks to Caribbean tourism economies. Popular destinations from Florida to the Lesser Antilles are bracing for continued impacts throughout the peak summer travel season.
Source: Skift