I have posted quite a few pages about the Charente river, which is not surprising because this blog is about Poitou-Charentes and the river is a big part of this region.
In Rochefort the river is close to its estuary, only 12 miles to the sea and as you would expect it is Tidal. The river is 381 Km in total and its source is in Cherronac in the department of Haut Vienne. The river is now navigable up as far as Angouleme, having been restored and locks constructed and renovated following its decline in the middle of the 20th century.
Years ago there was a lot of barge trade up and down the river, and three distinctive designs of barges were designed and constructed along the river. Now there are only a few left and they are largely used for tourist purposes.
Also the Charente was a major Naval port in the past but it was largely destroyed at the end of the second world war.
For more about Rochefort visit; https://poitoucharentesinphotos.wordpress.com/2012/12/11/rochefort/
For more on the river Charente visit; https://poitoucharentesinphotos.wordpress.com/2012/09/20/la-charente-the-upper-reaches/