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The Wantsum Channel is the name given to a now silted-up watercourse separating the Isle of Thanetmarker and what was the mainland of the Englishmarker county of Kentmarker. The "river" Wantsummarker is now little more than a drainage ditch lying between Reculvermarker and the River Stour.


A general map showing late Roman Kent.
The Wantsum Channel lay between the Isle of Thanet and the British mainland, in the north eastern corner of Kent
From prehistory until the Middle Ages, the Wantsum Channel was joined by the River Stour, which entered it at Stourmouthmarker about midway along the Stour; it was a two-mile-wide (3.2km) strait. The southern end of the channel met the sea at Richboroughmarker (Roman name, Rutupiaemarker), downstream of Sandwichmarker, a northern stretch ended at Reculvermarker (Latin Regulbium). That the Romans chose both sites for forts indicates the significance of the route, which their shipping commonly used to travel between London and the continent; and which Vikings used to raid Canterburymarker in 839 CE.

Deposition of shingle at Stonar, at the southern end of the Channel, gradually caused it to silt up; and shipping heading for Canterbury, formerly using the northern entrance, brought Fordwichmarker into prominence as its outport. The silting up continued, particularly during the 12th and 13th centuries, when Augustinian monks entered into land reclamation; eventually, by the 16th century, the Wantsum Channel had dried up apart from the large drainage ditch down the centre of the erstwhile channel and its feeder ditches: the wider parts often referred to as the River Wantsummarker. However, that is only the northern section for, where the River Stour formerly emptied also to the north, its southern estuary could also be considered part of the Wantsum

Efforts made by the monks of Minster-in-Thanetmarker to manage the Wantsum in the Middle Ages are reflected in two names for parts of the Channel/Stour, Abbot's Wall, and Monk's Wall. During the 18th century, silting threatened the rich port of Sandwich and efforts were made to create sluices and channels to control the waters. These ultimately failed, and as a result Sandwich is now some distance from the sea. In time, coastal erosion washed away most of the fort at Reculver, though parts of the western wall can still be seen close to the church towers. This church was founded in about 669 AD, long after the Romans had departed, the two towers being added in the 12th century. By the time Reculver church was built, the northern outlet of the Wantsum had become known as the "river Yenlade". The church was demolished in the early 19th century, leaving just the towers as an aid to shipping. The towers and the remains of the fort are essential viewing for the tourist.

Some information used in this article is partly taken from the Kentish Stour Countryside Project notes on "The 'Life and Times of the Wantsum Channel"

The North Sea flood of 1953 had the effect of making the Isle of Thanet an island again, if only for a few days.

The Wantsum Channel is part of three walks: the Wantsum Walk, the Saxon Shore Way and the Stour Valley Walkmarker.


  1. Bede, Ecclesiastical History, v, 8.
  2. Kentish Stour Countryside Project

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