Police have issued a fresh warning not to swim in a 'dangerous' blue lagoon in the Peak District.
The disused limestone quarry, in Harpur Hill near Buxton, has been described as 'probably the most dangerous water in the UK'.
While its lush blue waters look like a tropical paradise, swimming in it could cause chemical burns and infection.
This is because its high alkaline pH levels makes it similar to swimming in 'a bath of bleach'.
According to YorkshireLive, Derbyshire Police have now issued a fresh warning urging people not to visit the area.
In May last year, the force issued a warning after an estimated 2,000 people travelled there during hot weather.
Police have not received any reports of any anti-social behaviour around the quarry over the Bank Holiday weekend, though they are now urging people to stay away.
"There are a number of disused quarries across Derbyshire, and throughout the country", the force said.
"Many of them are on private land so as well as the risk of trespassing penalties, people swimming in quarry waters put themselves in danger of cold-water shock, getting injured by hidden items beneath the surface or other health issues relating to pollution.
"Please don’t put yourself at risk."
In March 2020, police dyed the water black to deter visitors amid the coronavirus pandemic.
A number of signs leading up to the pool warn visitors that the water is toxic enough to cause ‘skin and eye irritations, stomach problems and fungal infections such as thrush’.
Another notice advises potential visitors that the lake has been used as a dumping ground and is known to contain car wrecks, dead animals, excrement and rubbish beneath its sparkling surface.
