Bluewater Shopping Centre (commonly referred to as Bluewater) is an out-of-town shopping centre in Stone, Kent, England, outside the M25 Orbital motorway, 17.8 miles east south-east of London's centre. Opened on 16 March 1999 in a former chalk quarry after three years of building, the site including car parks occupies 240 acres and has a sales floor area of 154,000 m over two levels, making it the fourth-largest shopping centre in the UK. Elsewhere in Europe only Istanbul's Cevahir Mall and Vienna's Shopping City Süd are bigger.