Shoreham-by-Sea is a coastal town and port in West Sussex, England. The town is bordered to its north by the South Downs, to its west by the Adur Valley and to its south by the River Adur and Shoreham Beach on the English Channel.

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Old Shoreham dates back to pre-Roman times. St Nicolas' Church, inland by the River Adur, is partly Anglo-Saxon in its construction. The name of the town has an Old English origin. The town and port of New Shoreham was established by the Norman conquerors towards the end of the 11th century.