On 26 May this year, a child was pulled unconscious from the water at Ruislip Lido. The air ambulance and multiple emergency services attended, and local roads had to be closed for several hours. By extraordinary luck, and the actions of an off-duty paramedic and another member of the public who administered CPR and used a defibrillator, the child survived.
This article sets out what happened, what residents and the Council have said about it since, and what the Council’s own records show about how long this risk has been known and unaddressed.
What the eyewitness saw
A woman who was at the Lido that day, with a friend whose daughter was the child involved, wrote to the Council afterwards, and has given us permission to draw on her letter.
She explained why she’d travelled to the site: “attracted by the appearance and presentation of the site as a family beach destination,” with “a sandy beach, children’s play facilities, a splash area, a large boat play structure.” She pointed to the name itself – “the term ‘lido‘ is widely understood by the public to refer to an outdoor swimming facility” – and to what she found on arrival: “an apparent absence of visible supervision, lifeguards, enforcement personnel, controlled access points or clear and prominent warning systems.” The site, she wrote, was “functionally indistinguishable from a recreational beach and swimming area.”
She asked the Council to urgently review its signage, whether physical barriers were needed, whether lifeguard patrols should return, and whether its own branding was misleading families about what the site offered. Her closing line is the one worth sitting with: “The child involved… survived only because suitably skilled individuals happened to be present by chance. A future child may not be so fortunate.”
What she was told when she first asked
Before writing to us, she’d raised her concerns directly with the Council, through the contact form on its website – the nearest thing available, since the Council’s website has no dedicated channel for a safeguarding concern of this kind. The reply she got back was not a stock response. It read as though someone had actually read her letter: it thanked her “for setting out your concerns in detail” and expressed relief that the child had recovered.
Even so, it did not confirm the one thing she had explicitly asked for – “acknowledgement of this email and confirmation that it has been referred to the relevant safeguarding, parks, health and safety, and legal departments.” What she got instead was a general assurance that “the concerns you have raised will be shared with the relevant Council teams for review.”
It’s worth reading that reply’s language alongside the formal answer Cllr Bridges gave Carolyn’s Public Question weeks later, since both make the same underlying point, at different levels of directness. The Council’s first, personally-written reply notes that “children must remain under the close supervision of a responsible adult at all times, particularly in areas close to open water.” The formal Council answer says the same thing without the softening: “the presence of open water does not create a duty to remove every obvious risk or to fence off public open spaces. The primary responsibility for keeping children safe rests with parents, carers and individuals using the site.”
Read together, the underlying message given to a family whose child nearly died has been consistent from that first reply through to a formal answer at Full Council: this was, at bottom, a supervision failure, not a design one.
What Carolyn asked, and what the Council answered
Committee member Carolyn Towner raised the matter formally as a Public Question to the Cabinet Member for Residents’ Services, Cllr Wayne Bridges, at July’s full Council meeting. Her question was specific: along the 250-metre route most visitors walk from the bus stop and main car park to the beach, the information boards cover ducks, geese, planets, asteroids, dogs and barbecues – but nothing about water danger. The only water warning signage is on the beach itself, where it can be lost among gazebos and tents on exactly the days an incident is most likely.
Cllr Bridges chose to answer in writing rather than in person. His answer confirmed there are no plans for physical barriers: “There is no evidence to suggest that fencing would materially reduce the risk, as access could simply be displaced to other parts of the shoreline,” and barriers “may also impede emergency access and rescue efforts.” Officers are, he said, “reviewing whether any further improvements to signage or public information would be appropriate.”
What the answer didn’t do was engage with the specific claim Carolyn made – the 250 metres of approach path with no water-hazard signage at all. Instead, a large part of the response was devoted to something else: rejecting media coverage of the incident, describing MyLondon’s reporting as containing “clickbait journalism, poor fact-checking and misleading reporting,” and stating that “the only organisation actively promoting Ruislip Lido as a ‘secret beach’ is MyLondon itself.”
This isn’t a one-off observation
The specific gap Carolyn raised – no signage for 250 metres – isn’t something raised in the abstract. RRA committee members visited the Lido on Spring Bank Holiday Monday, walked the same route on foot, and photographed it directly: no warning signs of any kind between the bus stop and the final turn onto the beach, while people were visibly swimming along that stretch of bank throughout the visit.
The same visit recorded a wider pattern of rules that exist on paper but aren’t enforced on the ground: barbecues, alcohol, amplified music and idling vehicles, all against published site rules, none challenged. Two structural gaps stood out particularly: enforcement effectively stops each evening when parking wardens finish at 5pm and civil enforcement officers at 7pm, well before the site empties on a hot evening; and a “no amplification” pictogram sign is doing the job of telling visitors not to bring speakers the size of fridges – audible, on the day, from the far side of the lake.
None of this is new. As the committee member who made these observations put it to colleagues at the time: “none of this is new or any more urgent now than it has been for months or years.”
The promise that was never kept
In April 2025, at the RRA’s AGM, Council Leader Cllr Ian Edwards acknowledged the “obvious risks” at the Lido and promised a comprehensive, site-wide risk assessment, saying the work “will be picked up very quickly.”
It wasn’t. By August 2025, the Council’s own Emergency Management Response Manager confirmed she had “not been involved in, nor had any prior knowledge of” any such assessment being carried out. In September, the Council’s own Green Spaces Technical Manager was asking colleagues internally: “it seems Members promised something that was not communicated to Officers… is there a plan to produce such a risk assessment?” By November, this Association was publicly warning that the Lido could face another peak season with no plan in place.
In February 2026, the new Cabinet Member, Cllr Wayne Bridges, gave a written assurance that work was underway with “specialist external advisors,” promising it would be ready “ahead of when the Lido is expected to reach peak use.” In March 2026, a ward councillor told the RRA’s AGM that a report was expected “in the next few days.”
The near-drowning happened in May 2026. No site-wide risk assessment has ever been published.
An Operational Plan that doesn’t mention the word “drowning”
The Council’s long-awaited Ruislip Lido Operational Plan for 2026 was finally issued this year. It is worth reading closely, because of what it doesn’t say.
The plan’s own “Situation” section lists the specific problems it exists to manage: “significant parking issues,” “localised traffic congestion,” “littering,” “general ASB/public disorder and noise,” “misuse of Lido facilities,” and “misuse of drink and drugs.” Water safety does not appear on that list at all. The plan goes on to specify, in detail, the numbers of parking enforcement officers, traffic marshals and litter crews to be deployed under three tiers of response – but at no point does it mention a lifeguard, a water safety officer, additional water-hazard signage, or the risk assessment the Council has spent a year promising.
A document titled “Operational Plan” for a site where a child nearly drowned this year has, in short, nothing operational to say about drowning.
The risk assessment nobody updated
When pressed on why no “overall” review has ever appeared, the Council’s public position – now published on its website – is that safety at the Lido is instead “addressed through these risk assessments and our operational plan, rather than through a single standalone document,” and that the Council “carries out, regularly reviews and follows a range of risk assessments at Ruislip Lido.”
We’ve now seen the risk assessment that specifically covers the water itself: reference 781, “Ruislip Lido water body,” covering “Drowning, catching an infection through contact with the water” for “all visitors.” Its assessment date is 12 July 2021. Its recorded “Date Modified” is the same day: 12 July 2021. It was approved, in its current form, on 22 July 2021 – and nothing in the document suggests it has been revisited since. Unlike the Operational Plan, which sets a “Next Review Date” of February 2027, this document shows no scheduled review date at all, despite the Council’s own website stating that “each assessment includes its own assessment date, review date, and approval status.”
The assessment itself rates the risk of drowning as “10 – Moderate Risk,” both before and after its listed control measures: signage, red flags, water testing once a week between April and September, and life rings along the beach. Its own field for “Additional Control Measures” reads simply: “none.”
To put that rating in context, we’ve now checked every risk assessment the Council holds for Ruislip Lido – nineteen documents in total, covering hazards from delivery-vehicle collisions and aggressive dogs to blue-green algae, the splash pad, and toilet block cleanliness. None of the other eighteen carries a rating above “8 – Moderate Risk” before any controls are applied, and none carries a residual rating, after controls, above “6 – Low Risk.”
The assessment covering open-water swimming and paddling is the only one rated “10” at either stage. And unlike several of the lower-rated assessments – which at least propose something further, such as speed bumps for delivery vehicles or additional site staff for one of the toilet blocks – its own field for further action simply reads: “none.”
It isn’t that these documents can’t be updated when the Council chooses to. Several were reviewed and re-approved in 2025: the assessment for delivery-vehicle access (16 June), general visitor amenities (30 April), and even the assessment for fishing – which separately lists “drowning” as a risk of lake access for anglers – was itself refreshed on 16 June 2025. The assessment covering general swimming and paddling in the open water, rated as the single highest risk anywhere on site, was not among them.
This is, in all likelihood, one of the “individual” risk assessments officers referred to in July 2025, when they told this Association that the Lido didn’t need an “overall” review because the existing documents already “cover most if not all eventualities.” Nearly five years after it was written – through a pandemic, a surge in visitor numbers, multiple public promises of a new review, and a near-fatal drowning – it remains the current, approved answer to how Hillingdon manages the risk of a child drowning at Ruislip Lido.
What the Council’s own history shows
Cllr Bridges’ written answer leans heavily on the claim that MyLondon invented the “secret beach” framing of the Lido. That doesn’t sit well with the Council’s own published history.
In 2014, the Hillingdon Council website described work underway on a “beach side catering facility,” and reported that “an extension to the existing beach area is being created… to include new sand.” Four years earlier, in 2010, the then-Leader, Cllr Ray Puddifoot, promised that residents would enjoy this new catering facility as part of a wider improvement plan that included “enhancing the beach to reinstate the swimming area that so many older residents used as children.”
Residents have also referred to a report they say was commissioned from consultants Halcrow, at a cost of over £50,000, to assess whether raising water levels would support swimming and boating – we haven’t seen a copy ourselves, and would welcome sight of it if the Council can provide one.
That controversial plan was strongly opposed by both residents and local conservation groups, and was eventually shelved – not because the Council decided it was misleading, but because it simply faded from view once it became inconvenient. It was never formally withdrawn.
So when the Council’s Cabinet Member tells residents that the only organisation to ever promote Ruislip Lido as a beach is a London news website, that isn’t accurate. Hillingdon Council did it first, in its own press releases, for the best part of a decade – and has never formally said otherwise.
Where this leaves residents
The friends and family of the injured child didn’t need any of this history to know something was wrong. They worked it out in an afternoon, from a boat-shaped play structure, a sandy beach, and a word – “lido” – that means exactly what it says.
The Council’s own records show a promised risk assessment, publicly committed to by the Leader in April 2025, that has never appeared. They show the risk assessment the Council does point to for drowning, unchanged since July 2021, rating the water the single greatest risk on site and recommending nothing further. They show an Operational Plan, issued this year, that manages parking and litter in detail but has nothing to say about the one risk that nearly killed a child in May. And they show a Council whose current defence – that residents and the press invented the idea of a “beach” – is contradicted by its own website and its own former Leader’s words.
We will continue to press for the risk assessment that was promised fourteen months ago.
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