London parks issue heatwave safety warning as wildfire and open water risks increase
As an Amber heat alert covers parts of England, some of London’s biggest park and green space organisations are urging visitors to take extra care as soaring temperatures bring a higher risk of wildfires and dangerous incidents in open water.
The joint appeal has been issued by the City of London Corporation, The Royal Parks, the National Trust, Lee Valley Regional Park Authority, and Parks for London, which together manage many of the capital’s best-known outdoor destinations. With millions of people expected to head to parks, commons, and woodlands during the hot weather, they are asking the public to make simple choices that help keep both people and nature safe.
The organisations say one of the biggest dangers comes from entering lakes, ponds, reservoirs, and other open water where swimming is prohibited. Although temperatures may feel unusually high, natural water remains cold enough to trigger cold water shock, while hidden obstacles and sudden changes in depth can create life-threatening situations.
Visitors are also being reminded that prolonged dry conditions significantly increase the risk of grass and woodland fires. Disposable barbecues, open flames, and carelessly discarded cigarettes can all ignite vegetation, particularly after extended periods without rainfall. People are being asked not to light fires, to dispose of smoking materials responsibly, and to either use park bins or take litter home.
The advice also includes practical steps to stay safe during the heat, such as carrying enough drinking water, keeping hydrated throughout the day, applying suncream regularly and seeking shade during the hottest hours.
Officials are also encouraging visitors to follow local guidance, respect park staff and help protect wildlife that can be particularly vulnerable during periods of extreme heat.
The organisations behind the campaign collectively care for some of London’s most visited outdoor spaces, including Epping Forest, Hampstead Heath, Hyde Park, Richmond Park, Morden Hall Park, Osterley Park, Walthamstow Marshes, and Gunpowder Park, which together attract tens of millions of visits each year.
The appeal comes as authorities continue to monitor the impact of the current heatwave, with public bodies encouraging residents to enjoy London’s green spaces responsibly while reducing avoidable risks to themselves, emergency services and the environment.
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