UK heatwaveAt least nine people, most of them teenagers and children, have died in separate water-related incidents across the UK during the recent heatwave and Bank Holiday weekend, according to a BBC report. The deaths have triggered urgent warnings from water safety experts, who are calling for immediate action to educate young people about the dangers of open water before the summer holidays begin.The fatalities were reported from lakes, dams, rivers and beaches across England and Ireland as soaring temperatures drove people to open water spots to cool off.Among the victims was 15-year-old Declan Sawyer, whose body was recovered from Swanholme Lakes near Lincoln on Sunday after reports that he had got into difficulty in the water. His grieving family later described him as a “funny and outgoing young man” and urged parents to warn children about the risks associated with rivers and lakes.Teenagers among victims across UKOn Bank Holiday Monday alone, several separate tragedies unfolded.A 13-year-old boy, locally identified as Reco Puttock, died after being pulled from Leadbeater Dam near Halifax in West Yorkshire. In another incident, the body of a teenage girl was recovered from Kingsbury Water Park in Warwickshire, while a teenage boy was found dead in a lake at Rother Valley Country Park in South Yorkshire following an overnight search.Police in Lancashire also recovered the body of a child believed to be a 12-year-old boy who got into difficulty while swimming in the River Ribble near Ribchester.In Cheshire, emergency services continued searching Pickmere Lake for a missing 17-year-old boy after reports he disappeared while swimming at the popular beauty spot. Authorities later confirmed a body had been found in the water.The heatwave-related tragedies were not confined to England. In Dublin, 15-year-old Abbie Carmody-Pepper died while bathing at Burrow Beach in Sutton.Meanwhile, in Cornwall, a man in his 60s lost his life after entering the sea to help two relatives who were struggling in the water near Padstow.Water safety experts issue urgent warningThe Royal Life Saving Society UK (RLSS UK) said warmer weather often leads to a rise in accidental drownings and warned that open water can remain dangerously cold despite high air temperatures.Experts cautioned that sudden exposure to cold water can trigger “cold water shock”, causing breathing difficulties, panic and loss of mobility.Jim Bridge from the Water Safety Partnership urged people to remember the “Float to Live” advice if they find themselves struggling in water.“Lie on your back with your head tilted back and ears submerged. Use your arms and legs to help you stay afloat and try to control your breathing,” he said during an interview with BBC Breakfast.He added that once breathing returns to normal, people should either call for help or carefully attempt to swim to safety.Calls for immediate water safety lessons in schoolsFollowing the deaths, drowning prevention organisations are demanding that schools begin teaching open water safety lessons immediately instead of waiting for the new academic term in September.RLSS UK said the inclusion of water safety education in England’s Relationships, Health and Sex Education (RHSE) curriculum was a positive step, but warned that delaying lessons until autumn could cost lives during the upcoming summer break.The organisation urged parents, teachers and community groups to make use of freely available water safety resources to educate children and teenagers before schools close for the six-week holidays.Declan Sawyer’s father, Carl, echoed those concerns in an emotional appeal.“We would like to raise awareness about children playing near rivers or lakes in the hot weather,” he said. “Please make children aware of the dangers surrounding water.”Cooler weather brings brief reliefAfter days of record-breaking temperatures, cooler weather began moving into northern and eastern parts of England on Wednesday, bringing temporary relief from the heatwave.However, authorities continue to urge caution around lakes, rivers and coastal areas as warmer conditions are expected to return later in the week.