Seine Seine The Seine ( , ) is a river and an important commercial waterway within the Paris Basin in the north of France. It rises at Source-Seine, northwest of Dijon in northeastern France in the Langres plateau, flowing through Paris and into the English Channel at Le Havre (and Honfleur on the left bank). It is navigable by ocean-going vessels as far as Rouen, from the sea. Over 60 percent of its length, as far as Burgundy, is negotiable by commercial riverboats, and nearly its whole length is available for recreational boating; excursion boats offer sightseeing tours of the river
Blackadder Water and joins with that river at the village of Allanton, where Blackadder House and its estate once stood. The Whiteadder then crosses the English Border below Edrington where it joins the Tweed which empties into the North sea at Berwick-upon-Tweed. Blackadder Water Blackadder Water () is a river in Berwickshire in the Scottish Borders area of Scotland, forming part of the River Tweed system. Rising in the Harecleugh Forest plantation just south of the Twin Law cairns, north of the village of Westruther, the headwaters of the Blackadder join with those of the Wedderlie, Edgar, and Fangrist Burns, before reaching