Sam Knight’s Cefn Sidan Beach sand burns began after he moved a disposable barbecue aside, put it out, and stepped where it had stood. The 27-year-old beachgoer said the sand was still boiling and had to be carried off the beach.
He later returned with a thermometer and found the sand under a disposable barbecue placed straight onto the ground reached 244 degrees. Sand under a barbecue raised 40 mm above the surface stayed close to the beach temperature, showing how much safer a gap can be than direct contact.
Sam Knight at Cefn Sidan
Knight was at a family gathering at Cefn Sidan earlier this year when wind was blowing sand around as he used the barbecue. He said: "When we’d finished with the barbecue I used tongs to move it to one side and extinguished it, so I thought it was safe," and then added: "But the patch of sand it had been on was still boiling, and after I stepped on it I had to be carried off the beach."
He went first to the minor injuries unit at Neath Port Talbot Hospital and then to Morriston Hospital. That sequence matters for anyone dealing with a beach burn: the damage can be severe enough to need hospital treatment even after the barbecue itself is no longer in use.
Melanie Holbrook at Oxwich Bay
Melanie Holbrook was burned at Oxwich Bay after her barbecue had been put out and moved. She said: "When I looked, the bottoms of my feet were burnt yellow," and added: "The heat from the barbecue had gone straight into the sand. I had no idea that could happen."
Holbrook still gets some sensitivity in her feet. She also said: "I wouldn’t wish that pain on anyone," after treatment that included cold water, shade, and an ambulance response.
Welsh Centre for Burns advice
Jeremy Yarrow, a consultant surgeon at the Welsh Centre for Burns and Plastic Surgery, said figures from the International Burn Injury Database showed a continuous rise in disposable barbecue injuries over the past few years. He said sand can reach upwards of 400°C and stay dangerous for hours after the barbecue unit has gone.
Yarrow warned: "To an unsuspecting child running barefoot or a beachgoer stepping onto the beach hours later or pet, this hidden hazard can inflict devastating, full-thickness burns in a fraction of a second," and the Welsh Centre for Burns says covering coals with sand insulates them instead of putting them out. The practical takeaway is simple: if a disposable barbecue has been on sand, do not assume the ground is safe just because the flames are out.
That is the part beachgoers need to carry with them home from Cefn Sidan and Oxwich Bay: the barbecue can be gone, but the burn risk can remain in the sand underfoot.
