Navigating this waterway is covered in the following guides:
Wikipedia has a page about Coventry Canal
The Coventry Canal is a navigable narrow canal in the Midlands of England.
It starts in Coventry and ends 38 miles (65 km) north at Fradley Junction, just north of Lichfield, where it joins the Trent and Mersey Canal. It also has connections with the Oxford Canal, the Ashby Canal, and the Birmingham and Fazeley Canal.
Some maps show the canal as a northern and a southern section, connected by a stretch of the Birmingham and Fazeley Canal, but others show the through route all as the Coventry Canal. This reflects a complicated period of ownership and re-leasing when the Coventry Canal company was in financial difficulties during construction.
It runs through or past the towns of Bedworth, Nuneaton, Atherstone, Polesworth and Tamworth. It is navigable for boats up to 21.9 m (72 ft) length, 2.1 m (7 ft) beam and 1.98 m (6 ft 6) headroom. It forms part of the Warwickshire ring.