As the title says, from the source of the River Severn to the sea, a total of 220 miles. We start our journey 2,000 feet high on Plymlimon, before travelling down through the Hafren Forest towards the small town of Llanidloes.
Continuing through Wales we stop a while at Newtown before heading for the Welsh border and into Shropshire. The famous Iron Bridge is visited, as is the market towns of Bridgnorth and Bewdley.
The Severn is now becoming wide as it travels through Worcester, into Gloucestershire and down into Gloucester itself. Finally we are sailing down the estuary where our journey finishes as the Severn flows into the Bristol Channel off Avonmouth.
Included in the talk are several short films, made by Chris Witts to a professional standard, showing different parts of this famous river.
One such film shows a large ship swinging in the Severn off Sharpness before entering the port, followed by a large Russian ship leaving.
All talks are illustrated with the latest digital equipment, including a short film or two, and last for about 1 hour. A basic fee of £45 is charged, plus .40p per mile.