Cancún, QR - The latest sargassum traffic light report for July 31, 2025, shows concentrated arrivals of the brown macroalgae along the eastern corridor of Quintana Roo, with beaches from Cancún through Tulum registering the highest levels. Several high-profile public and hotel beaches are flagged in orange and red, signaling substantial fresh landings even as parts of the state enjoyed a temporary statewide reduction in incoming masses earlier in the week. The Citizen Observatory and...
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