Big Box Jellyfish Blog Southeast Asia

  With plenty of talk about box jellyfish, whether they exist or not, at the popular beaches of Phuket in Thailand, here's a little reminder.  One way or another, they do. The Andaman Sea with its environment affected by monsoon-driven seasonal currents, massive internal waves and tidal influences, can get rough. Box jellyfish are fragile and seek shelter to breed, mainly in coastal mangrove areas, meaning they tend to proliferate in more protected habitats, and as the seasons dictate. The western and southern coasts of Phuket between May and October are out of bounds for box jellyfish. However, calmer waters mean more opportunity to feed and breed though empirical evidence suggests they much prefer the refuge of the east coast. Serious stings have occurred on the seaward west coasts of both Phuket and Koh Lanta. Keep in mind that there are two types or orders of box jellyfish, scientifically known as Cubozoans. The multi-tentacled  Chirodropida  - specifically the...

  Langkawi dodges a bullet, but it's visitors are in the crosshairs. Malaysia's tourism jewel, Langkawi, is a deadly box jellyfish hotspot with the tragic 2025 death of a toddler continuing its  long-established reputation  for serious and fatal stings. The Times of India were seemingly unaware of this fact when they recently published a list of popular but hazardous beaches hosting  dangerous jellyfish . 2025 Box Jellyfish Death Langkawi Koh Samui's Lamai and Chaweng were Thai  beaches  singled out, as were Palawan's White beach and El Nido in the Philippines, but no other Southeast Asian beach made the cut. The reality is that there are dozens of high risk beaches across the region, though  The Times of India focussed only on those that are mega-popular with tourists.  Why then not Langkawi? Tourists Denied Dangerous Truth At Langkawi Pushing 4-million visitors a year, Langkawi receives more tourists annually than Koh Samui.  Langkawi denie...

  UPDATED 6 MARCH 2026 A hearing is currently taking place in the Philippines' halls of power about bringing into law the Child Tourist Safety Act, or Sandy's Act, that's designed to protect children in tourism areas from the likes of box jellyfish. This is landmark stuff! Led by Senator Risa Hontiveros, Chairperson of the Committee On Women, Children, Family Relations & Gender Equality, the bill includes a range of issues impacting children in tourism areas from abuse to a lack of medical aid in emergencies such as a potentially deadly jellyfish sting. These emergencies as too often detailed here, happen far too frequently. One such tragedy involved six-year-old Sandy Garovillas, who died from a jellyfish sting at a Palawan resort on 30 October, 2023. Every year, it is estimated that between 20 and 40 children die from a box jellyfish sting in the Philippines. It's most likely more. This is a disturbing number. Philippines Jellyfish & Child Deaths Not one to ac...

Langkawi, Malaysia has long been a hotspot for tourists and box jellyfish, and once again, this high-risk combination proved to be a deathtrap. Sad news today from the notorious Pantai Chenang - where serious stings including fatalities have occurred with grim regularity - have surfaced of the tragic death of a two-year old boy. Holidaying with Russian parents Nikita and Olga  Iakubanets, Vladimir, who was affectionately known as Vova, died while the young family was enjoying a day at the beach. The  Iakubanets had only arrived in Malaysia the previous day and were doing what every visiting family would do without any idea of the danger lurking in the shallow waters of  Pantai Chenang. The circumstances of little Vova's excruciatingly painful death are unfortunately common: playing in the sandy shallows, stepping into the tentacles of a near-invisible box jellyfish, screaming in agony, terrified parents not knowing what to do, the child losing vital signs and locals and f...

  Some Thai media outlets have recently reported (October, 2025) that several people holidaying on Phuket's western beaches of Patong and Kalim have been stung by venomous jellyfish, including we're told box jellyfish, and some victims were transfered to hospital. The facts, according to Phuket lifeguards, are that a few were stung, one went to hospital and the  jellyfish deemed responsible is the sea nettle or  Chrysaora, not box jellyfish. For once, boxies are not the bad guys. The victims' burning, blistering rash-like stings are seriously painful and cannot be underestimated, but these  media outlets putting a sensational clickbait trap over substance and facts, while no surprise, r ubbed salt into the wounds of nervous local tourism. Sea nettle  jellyfish are widespread. There would be many people all around Thailand brushing up against these very stingy creatures every week, and unfortunately coming off extremely painfully the worse for wear. There ar...

  Sad news from Sabah with a 7-year old girl succumbing to the deadly venom of a box jellyfish sting.  Little has been reported about the child or the incident, though it's said that she collapsed on the sand when coming out of shallow water, and a subsequent post mortem concluded that the " cause of death was jellyfish envenomation ". Her tragic death occurred at Pantai Sawangan in Kuala Penyu, south-west of Kota Kinabalu,  on Thursday 21 August, 2025. This region too commonly is the site of serious box jellyfish stings and fatalities.   Devastatingly, it's unlikely there were any warning signs or information posters or even treatment options such as vinegar available at this popular beach. There appears to be a lot of work behind the scenes at a scientific level, though on Malaysia's beachfronts there's a continued pattern of young children dying from box jellyfish stings. Not so in northern neighbour Thailand where a decline in sting numbers and improved vi...

  The Philippines has taken a much-needed step toward saving lives with the recent release of a  jellyfish safety video   by the Philippine Society of Allergy, Asthma & Immunology (PSAAI).  While this might seem insignificant, it's actually a very  positive  move forward after decades of inaction and recent public and political outcry that erupted over the preventable deaths of innocent children. As posted HERE in September 2024 about the tragic death of five-year-old Kiera and consequent public anguish expressed by her devastated mother  Jahaziel Michaellie Maningdin; the people have pleaded, the government has listened, and this  PSAAI  video goes some way in raising awareness and honouring the memory and legacy of not only Kiera, but numerous other children whose young lives were ended by a box jellyfish sting. Sadly and poignantly, as the video was released and this post was being written, two 10-year-old children tragically died fro...

  In very welcome and long-overdue news, Malaysia's The Star is reporting that researchers are in the process of identifying dangerous jellyfish species local to seas around Sabah. A first of its kind, this is a great initiative by a committed number of scientists that will shed light on a growing problem and hopefully lead to real and meaningful change. Malaysia desperately needs a system of dangerous jellyfish safety and awareness to reduce the risk of serious stings and death that have gone under-reported for decades.  On Saturday, 09 Nov 2024, The Star's Muguntan Vanar wrote: Experts aim to identify venom from 17 jellyfish species A team of experts led by Lahad Datu Hospital is working on identifying venom from 17 jellyfish species found in Sabah waters. They hope to gain better knowledge and possibly seek out appropriate antidotes to treat deadly stings. Jellyfish sting incidents in Malaysia remain poorly documented, with only 15 recorded deaths from 1990 to 2022, si...

  Jahaziel Michaellie Maningdin is devastated and angry after the death of her daughter, five-year-old Kiera, who was fatally stung by a box jellyfish at a Philippines resort.  A relaxing mother and child swim turned into a nightmare at All Hands Beach in Subic Bay when on a calm and sunny late-June morning this year, Keira suddenly screamed, collapsed and within a few agonising minutes was dead.  She had stepped into the sticky tentacles of a lethal and endemic box jellyfish and was quickly, painfully killed by its lightning-fast acting and extremely potent venom. This happened at a resort. A revenue-making resort attracting paying tourists that offers no information, no warning signs, no related first-aid protocols, no rapid-response procedures, no anything.  Yet, aware of the risk and that box jellyfish are endemic to the area, they meanwhile promote their resort as “… great for swimming for all ages due to the gradually sloping depth of t...

  Zoe Cahill, a 23-year old Australian, was 50-metres offshore at Zen Beach on Koh Phangan in October 2023 when she swam into a box jellyfish and received excruciating life-threatening stings.  Alone in shock and agony, crying and screaming, Zoe summoned all of her courage and strength and somehow managed to get back to land, collapsed and critically began to turn blue.  Desperate first-responders frantically doused her in litres of vinegar while a nurse performed CPR and, after restoring vital signs, she was rushed to the local hospital.  An emergency speed-boat transported Zoe to Koh Samui where with extreme sting damage to limbs and torso she remained in a hospital bed for a month. Zoe's story as covered in mainstream media including Australia's 9 News and  related to thousands of her  @zoe_cahill  Instagram followers on  social media is another cautionary tale of survival with box jellyfish in South-East Asia...