Norwich also records the site of an Anglo-Saxon church in Tombland, the site of the Saxon market place and the later Norman cathedral. Norwich continued to be a major centre for trade, the River Wensum being a convenient export route to the River Yare and Great Yarmouth, which served as the port for Norwich. Quern stones and other artefacts from Scandinavia and the Rhineland have been found during excavations in Norwich city centre. These date from the 11th century onwards. Norwich Castle was founded soon after the Norman Conquest. The Domesday Book records that 98 Saxon homes were demolished to make
Norwich two, based on an island on the River Yare accessed from beside the Rivergarden pub on Thorpe Road in Norwich; and Norwich Rowing Club which is larger and, in partnership with Norwich Canoe Club, UEA Boat Club, Norwich School Boat Club and Norwich High School Rowing Club, has recently built a new boat house alongside Whitlingham Little Broad and the River Yare. Norwich Canoe Club specialise in sprint and marathon racing. They hold the highest British Canoe Union Top Club Gold accreditation and are one of the more successful clubs in the UK. Ian Wynne, 2004 Olympics K1 500m bronze