it's known as the 'Blue Lagoon', but the flooded former quarry near Buxton hides a toxic secret.
It's so polluted that it's almost as toxic as bleach.
There are warning signs that state the water can cause skin and eye irritations and stomach problems, but people continue to swim there.
People are being warned against swimming in a former quarry full of chemicals.
It's known as the 'Blue Lagoon' and it's tranquil turquoise waters draw people from far and wide.
But experts say it's PH levels make it almost as toxic as bleach.
A campaign is underway to stop people flocking to a beauty spot in Buxton, as experts say it's PH levels make it almost as toxic as bleach.
The council says the land is privately-owned, making it difficult for extreme action to be taken.
There's growing concern over a beauty spot in Buxton dubbed 'Blue Lagoon. ' The unusually bright blue water makes it look like a Mediterranean paradise but experts say it's PH levels make it almost as toxic as bleach.
Resident's say they're concerned because hundreds of people have been taking a dip to cool off in the warm weather but the water could cause stomach and skin problems.
– Pam Reddy - Derbyshire county council
It's full of rotting cars, excrement and dead animals and is not fit for anyone to go in. We think the attraction is the blue colour of the water which makes it so appealing so we need to remove that attraction which would be draining the lagoon or filling it in."
The water may look clear and inviting but campaigners in Buxton are desperate to warn people off a popular beauty spot known as the 'Blue Lagoon.' Experts say the water is almost as toxic as bleach.
With the hot weather recently though hundreds are flocking to the site and jumping right in.
The blue colour of the water is caused by the surrounding limestone rocks which turns it into what looks like a little bit of paradise when instead the site comes with a health warning.
Signs close to the shoreline warn the water could cause skin and stomach problems. Other warnings including ones stating the water is known to contain abandoned cars and human waste, but it has a pH level of 11.3 – compared with 12.6 for bleach.