A 15-year-old boy drowned in the Thames on the hottest day of the year and there is concern that a call to emergency services may have been made and treated as a "hoax", said a coroner.
Keen rugby player Jordan Veira was pulled from the water close to the Bounty Pub, following a search between Bourne End and Cookham. He had been with a group of friends when he disappeared under the icy waters.
It happened just hours after the body of an elderly woman was recovered from a nearby lock on May 31 this year.
A pre-inquest review heard how a rowing coach had sped along the river in a boat frantically searching for Jordan.
Similarly, a police officer borrowed a boat from a pub to carry out searches after a moored sailor had spotted the young man's head fall under the water, the inquest heard.
Senior coroner Heidi Connor said: "There is a suggestion that somebody phoned the emergency services but they treated it as a hoax. Detective Inspector Mark Carolan will give evidence about that and what his investigations revealed at the full inquest."
Sitting in Berkshire coroners court, heartbroken mother Sibongile Veira said: "I want to know more about the intense search. When he was found it would seem to everybody that he could have been found a bit earlier."
The Furze Platt Senior School pupil from Maidenhead was pulled from the water almost a year after two men died while swimming in the Thames near Cookham.
Similarly in 2014, Kyreece Marshall aged 13 years died after swimming in an area between Marlow and Bourne End.
Ms Veira said: "First of all, when my son went to this place, the river, there was absolutely no signs to say that there was any risk, there was no swimming guard to protect any child or adult swimming in the river.
"If there was a sign by the river then my son would have taken a few more precautions by making that decision to go into the river. Post this happening, anyone else going in there would be at risk.
"Before my son went in there, there was already a risk as someone had already died - people need to be made aware."
Devastated father Shaun Veira added: "According to locals, there is a sudden drop in a section of the river, my son was unfamiliar with that river, his friends were familiar with it. There was no one patrolling and no warnings on the hottest day of the year.
"It is not the first incident, if something is not done about it then it will happen again. That very day there was an elderly woman pulled out of the river yet the river was still open, why was it not closed."
During the pre-inquest review, the coroner explained that the full inquest would cover the boy going into the water, how far he went out and what he was doing, evidence about the search, finding Jordan and his cause of death followed by evidence of future safety issues.
The coroner added: "There have been suggestions made by the family about his school and questions about friendship issues at school but that is not something that will form a part of this inquest."
The court heard that the cause of Jordan's tragic death was drowning.
Sitting in the inquest was a Kingston maritime volunteer who had garnered a team to set up a water safety forum covering the non-tidal Thames after many tragic deaths in the water.
"The way incidents unfold is different to the coast who have the RNLI, they are different because they happen so quickly and cold shock on a hot day," he told the coroner.
Having played rugby for three years, the boy's rugby coach Lee Myall had previously paid tribute to the boy.
He said: "He absolutely just fitted in very well, particularly with his terrific smile and sense of humour.
"He had the boys laughing. It's just such a huge shock. A lot of lads were good friends of him. It's terrible."
The full inquest is set to start on November 4 this year and is expected to last for a maximum of two days.
Coroner Heidi Connor said: "This is all about the death of a 15-year-old boy, it would have been his 16th birthday on Monday and I am very sorry to have to think about that. In this case I have to consider matters of safety as a concern."
