ESF studies guidelines after boy dies during field trip when mercury hit 32 degrees The English Schools Foundation (ESF) is reviewing guidelines for school outings after a student collapsed and died during a field trip in Sai Kung Country Park in high temperatures. The 18-year-old King George V student died after collapsing and falling unconscious near Sai Wan Village in Tai Long during a geography field trip on September 21, when temperatures in the area reached 32 degrees Celsius. Two teachers and 15 students took part in the field trip. The ESF, which runs King George V School, is carrying out its own investigation into the teenager's death. A spokeswoman said the foundation would 'relook at the schools' guidelines for excursions'. Police are waiting for directions from the coroner on whether the case should be investigated. A prayer service for the boy was held yesterday, one day after his funeral. The boy, whose parents have requested that his name not be released, was unconscious when he was taken by ambulance to Eastern Hospital. The cause of his death is still unknown, pending the release of the postmortem examination report. School principal Ed Wickins said yesterday that until the cause of death was announced, it was impossible to ascertain whether anyone was at fault. 'The ESF, with our full co-operation, has done an investigation into the events of the day. It has not been published internally yet. The ESF is reviewing its policies on school trips,' Mr Wickins said. 'If there is any way we can improve our practices, we will do so.' He would not say whether the boy suffered from any medical condition, saying he did not want to speculate. Mr Wickins wrote to parents the day after the boy died, saying two counsellors would be available to students and a book of condolences had been opened for classmates to write messages. A mother whose two children attend King George V demanded to know what action the school would take after the boy's death. 'We all have to learn something about this tragic event. Why did it happen, what's been done about it and how can we stop this happening again,' she said. The ESF's guidelines on school excursions do not include specific advice on whether trips should go ahead in certain weather conditions. But an Education and Manpower Bureau spokesman said the bureau had detailed guidelines that applied to all schools, including ESF schools, with advice on what to do during very hot and very cold weather warnings. The guidelines say: 'Teachers/instructors should assess the situation and decide whether to postpone or cancel the activity.' No hot weather warning was in force on September 21. The temperature in Sai Kung at the time the boy collapsed was 32 degrees. A hot weather warning was issued the following day, when the maximum temperature rose to 36 degrees. In the past five weeks, Sai Kung hiking trips have claimed two lives and one man is missing. The body of hike leader Yuen Chi-yung, 22, was found near Lo Fu Kei Shek in the country park last Tuesday. Commercial Radio journalist Tang Siu-kei was killed after being washed off a rock in Ham Tin Wan on September 16, and policeman Ting Li-wah was reported missing during a hike in the park on September 11 and has not been found.