Visitors to Draycote Water this half term are being warned to play safe at the site.
Managers say that it has a host of attractions, but that people should stay out of the water.
Andrew Parsons, of Severn Trent, which owns the site, said, “The reservoir offers some spectacular views as well as activities for the whole family. But while there’s a long list of things you can do on your visit here, we want to remind visitors that swimming isn’t one of them.
“Going for a dip in the reservoir is much more dangerous than swimming in a normal pond or lake. Because the reservoir gets very deep very quickly, the temperature of the water, even in warm summer months, rarely rises above 8 degrees centigrade. That’s cold enough to cause hypothermia.
“Furthermore, big, hidden pipes and pumps pull large amounts of water from the reservoir into a nearby treatment works. Getting caught in one of these strong currents is dangerous even for the most confident of swimmers.”
More information about Draycote Water can be found at stwater.co.uk/daysout.