Overview

• White Horse Beach and Long Beach were closed to swimming on Sunday with red flags after a confirmed shark bite on a seal off Manomet Point, police and the harbormaster said.
• Both beaches shifted to yellow flags on Monday, with the town advising swimmers to stay close to shore, avoid areas with seals or schools of fish, and not swim or kayak alone.
• Plymouth police shared a photo of the injured seal near the rocks, and the harbormaster described fast, bottom-up strikes that target seals at the surface.
• Manomet Point is a known seal haul‑out area that can draw feeding white sharks, according to the town and NOAA guidance on shark–seal behavior.
• Researchers reported multiple detections and sightings of tagged great whites off Wellfleet, Orleans, Chatham, Provincetown, and Monomoy Island over the weekend, and a separate sighting was confirmed off Gurnet Point.