Deadly ‘blue dragon’ sea slugs wash up on Phuket’s Karon beach


Deceiving looks: Despite its diminutive size, the Blue Dragon is known for its aggressive nature and potent venom. — The Nation/ANN

Tourists and residents on Phuket’s Karon Beach are being urged to exercise extreme caution after sightings of the ‘Blue Dragon’ sea slug, a stunning but highly venomous marine creature, were reported.

Authorities are warning that touching the tiny creatures could result in a dangerous, even fatal, sting.

The appearance of the strikingly beautiful yet bizarre-looking Glaucus atlanticus, commonly known as the Blue Dragon, was initially reported by the “Emer­gency Medicine” Facebook page near Karon Beach.

While their vibrant blue patterns and six-winged, dragon-like shape are captivating, experts are stressing the serious danger they pose.

The Blue Dragon is a type of sea slug, an invertebrate typically found in warmer ocean waters and coastlines around Australia, South Africa and Europe.

Despite their diminutive size, usually around at least 2.54cm long, these creatures are known for their aggressive nature and potent venom, which they use to attack prey and deter threats.

The Facebook page “MONSOONGARBAGE THAILAND” has also reissued warnings, noting that the current sightings in July are consistent with their appearance around the same time last year in August, suggesting a seasonal presence.

Do not approach or touch a Blue Dragon under any circumstances, visitors are told. Their small size and beauty belie their extremely dangerous venom.

Authorities are appealing to both tourists and local residents to remain vigilant and strictly avoid contact with these creatures for everyone’s safety. -— The Nation/ANN

Follow us on our official WhatsApp channel for breaking news alerts and key updates!

Next In Aseanplus News

Tennis-Shadow of war looms large over French Open as semi-final lineup takes shape
Asean News Headlines at 10pm on Tuesday (June 2, 2026)
Woman arrested for allegedly throwing newborn from 10th floor of JB flat
MetMalaysia: Weak earthquake hits Kundasang
Chilli price drives Indonesia's monthly inflation
US, NATO allies to launch scaled-back Baltic Sea drills
Persatuan Kebajikan Sayap Kasih Malaysia pleads for help as the caregivers need a new home to look after the children
Three Chinese nationals arrested after locking woman and child on balcony of Singapore's Marina Bay Sands hotel during robbery
Five US passengers from hantavirus-hit ship return to home states
Robot patrol dogs could be coming to Taiwan’s South China Sea islands

Others Also Read