Sargassum

Small fishing boats gather sargassum seaweed in the Caribbean Sea off the coast of Quintana Roo, Mexico
Thick sargassum seaweed piled along the shoreline of Playa del Carmen after Hurricane Isaias stirred up the sea
Thick mats of sargassum seaweed piled along the shoreline of a Caribbean beach in Quintana Roo, Mexico
Workers install a sargassum barrier along a beach in Quintana Roo, Mexico
Floating sargassum containment barriers offshore near a beach in Puerto Morelos, Quintana Roo
Sargassum seaweed piled along the shoreline of a beach in Playa del Carmen, Quintana Roo