Rugby residents are being urged not to try to swim at Newbold Quarry Park - regardless of how inviting it may look.
The large pool - a former cement quarry, which was used as a canal reservoir till the 1980s - is incredibly deep and this means that it is always very cold. It also has dangerous undercurrents.
Cllr Dr Mark Williams, portfolio holder for sustainable environment, said: “Newbold Quarry is a great place to visit and has some wonderful opportunities to see native wildlife. However, I would urge people to think twice about swimming at Newbold Quarry.
“The water may look tempting on a hot summer day, but it is deceptively dangerous.”
And people are also urged to think twice about jumping into the area’s canals too.
Many canals are relatively shallow and anyone jumping or diving into them runs a risk of serious injury from hidden objects under the water.
The water is frequently colder than expected and can bring on cramps to even the strongest swimmers, while currents created by passing boats and water movements around locks and weirs pose further dangers. Contact with canal or river water can also bring about stomach illnesses or Weil’s disease from rats.