The Blue Lagoon near Buxton, a flooded quarry - has inviting turquoise waters, but it is so polluted it's almost as toxic as bleach.
There are warning signs saying it can cause skin and eye irritations and stomach problems, but families and young swimmers are ignoring them.
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It's thought he will confirmed as the party's candidate today to fight the Stoke-on-Trent Central by-election after Tristram Hunt resigned.
Tour the Hanging Gardens of Babylon and The Great Barrier Reef in miniature.
Fine in cold in the Midlands with some fog around.