People still swimming in open water despite warningspublished at 10:31 British Summer Time 10 July 2018
People are ignoring warnings not to swim in the pool at Silverdale Country Park in Newcastle-under-Lyme.
The ranger at Silverdale, Andrew Hunt, says he's had to ask visitors to get out of the water four times.
He says there are sharp pieces of metal in the former coal mine, along with fishing line and weeds.
Efforts have been made to warn of the dangers of open water swimming after the death of 13-year-old Ryan Evans in Westport Lake.