The Vienne in that area is mostly shallow and there aren't many places where you can access it. I did an article for the Etcetera magazine last month that covers the Vienne. Ignore the photo. That is of the Charente. The editor got my photos mixed up.
www.etceteraonline.org
The Charente was covered the previous month
www.etceteraonline.org
If you are interested in the Resistance aspect in that area, there is a museum in the old quarter of Limoges and a Memorial at Chasseneuil. Most of the bridges in that area were blown up or attempts were made to destroy them in the summer of 1944. There are plaques near to bridges dedicated to those who died in those operations. There is also a memorial at Bassac bridge on the Charente marking the place whee Blondie Hassler and Bill Sparks met the Resistance who helped them return to England after the Cockleshell Heroes raid.