The River Severn is the longest river in Britain, running through 220 miles (350km) from its source 1,968ft above sea level at Plynlimon in the Cambrian Mountains in Wales to the Severn estuary in the Bristol Channel. Its journey takes it across the agricultural valleys of Wales and across the Shropshire plain, through Worcester, becoming tidal north of Gloucester.

The Severn Bore

Did you know you can surf up Britain's longest river on a tidal wave at certain times of the year?
The huge tidal wave, known as the Severn Bore, is caused by the rising water at spring tides being funnelled up the estuary where it narrows, the wave is pushed upstream. The bore can reach a height of 2 metres. It can move at 13m.p.h. It travels 21 miles before losing its strength.

The Severn Yesterday           The Severn Today            The Severn Tomorrow        

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Citations
http://www.welshpedia.co.uk/wiki/wales/index.php?title=Main_Page
http://www.severn-bore.co.uk/
http://www.localhistories.org/worcester.html
http://www.localhistories.org/gloucester.html
http://www.localhistories.org/shrewsbury.html
http://www.newtown.org.uk/history.htm
www.ironbridge.org.uk
http://www.reuk.co.uk/Severn-Barrage-Tidal-Power.htm

Mrs John for permission to use photos of Worcester and the Severn
Mr and Mrs Connor for information and for permission to use photos from the Severn Estuary and the Port of Bristol