Phuket –
The Department of Marine and Coastal Resources (DMCR) has issued an urgent advisory warning tourists and operators to avoid water activities near Maiton Island, Phuket, after a high concentration of venomous jellyfish was detected.

Marine veterinarians from the Siritharn Rare Marine Animal Rescue Center reported the presence of Pelagia species, commonly known as “fire jellyfish,” with densities reaching up to 40 individuals per 100 meters during high tide. The jellyfish, averaging 2–3 centimeters in diameter, can cause painful stings, skin irritation, and itching upon contact.

Authorities confirmed that several tourists and boat crew members experienced mild symptoms after accidental exposure. Following the alert, water-based activities in the affected area were immediately suspended.

Officials have since launched a public awareness campaign, urging caution and distributing first-aid guidelines via QR codes to ensure preparedness and minimize risks. The DMCR explained that fire jellyfish are often found in large numbers during high tide and certain seasonal conditions, making vigilance essential for both tourists and local operators.
The department reiterated its call for cooperation, advising visitors to refrain from entering the water until further notice to safeguard public safety and maintain confidence in Phuket’s marine tourism.





