Nasheem Geddes (left) cracks up at his friend Carlington Thomas' battle with sargassum afterhe resurfaced from the water as they enjoyed a swim at Pagee Beach in Port Maria, St Mary, on Tuesday. The brown macroalgae is currently the largest seaweed bloom in the world, according to satellite observations, and has caused a 35 per cent dip in regional tourism. With today's public holiday, beach lovers could find themselves battling the unwelcome guest, particularly on the sourthern and eastern shores