Venomous Portuguese Man o’ War Wash Ashore at Phuket’s Kata Beach, Prompting Safety Warnings
PHUKET — Marine experts have issued urgent safety advisories after several highly venomous sea creatures, including the notorious Portuguese Man o’ War and the striking Blue Dragon sea slug, were discovered washed up on Kata Noi Beach. The Andaman Coastal Resources Research Center confirmed the unusual sightings following reports from local lifeguards and marine patrols.
40 Portuguese Man O War Jellyfish Found on Phuket Patong Beach
Scientists conducting beach surveys collected specimens of multiple hazardous species. The Portuguese Man o’ War, often mistaken for a jellyfish, delivers excruciating stings through its long tentacles, with several specimens measuring 1–2 cm found along the shore. Equally concerning is the Blue Dragon, a vividly colored sea slug that accumulates toxins from its prey, posing risks to unsuspecting beachgoers.
Less harmful but still notable were sightings of Blue Button Jellyfish and By-the-Wind Sailors, which, while not deadly, can cause mild skin irritation. Marine biologists attribute the unusual strandings to strong winds and rough waves (2–3 meters) disrupting coastal waters.
Lifeguards at Kata and Karon beaches have intensified patrols, warning visitors to avoid contact with any unfamiliar marine life. Symptoms of stings from these creatures include severe burning pain, skin rashes, and localized swelling. While no fatalities have been reported in Thailand, immediate first aid—such as rinsing with vinegar (not fresh water) for Portuguese Man o’ War stings—is critical.
The Phuket Marine Office has deployed additional signage along affected beaches, while hotels and tour operators have been instructed to brief guests on emergency response protocols.
Tourists warned about Portuguese man-o-war in Koh Lanta
Note: Beachgoers are urged to report stranded marine life to lifeguards and avoid handling creatures, even if they appear dead.
-Thailand News (TN)




