Seasalter is a village on the north coast of Kent, England, between Whitstable and Faversham, facing the Isle of Sheppey across the estuary of the River Swale, 6 miles north of Canterbury. Seasalter came to prominence as a centre for salt production in the Iron Age, and the resulting prosperity resulted in Viking raids on the area. Later, the Do…Seasalter is a village on the north coast of Kent, England, between Whitstable and Faversham, facing the Isle of Sheppey across the estuary of the River Swale, 6 miles north of Canterbury. Seasalter came to prominence as a centre for salt production in the Iron Age, and the resulting prosperity resulted in Viking raids on the area. Later, the Domesday Book recorded that Seasalter "properly belongs to the kitchen of the Archbishop". The church was dedicated to a martyred Archbishop of Canterbury, Alphege, first built in the 12th century, its nave was demolished in the 1840s but its chancel still stands and is a Grade II listed building. In the 18th century, the marshes were drained to create the Seasalter Levels.