Earl's Sluice

Earl's Sluice is an underground river in south-east London, UK, named after the Earl of Gloucester in the time of Henry I. Its source is Ruskin Park on Denmark Hill. In South Bermondsey it joins with the River Peck before emptying into the Thames at Deptford Wharf.

Earl's Creek marks the boundary between St Mary's parish, Rotherhithe and St Paul's parish, Deptford. Until 1889 this was also the Kent-Surrey boundary.