UK: Walking the Thames PathA guidebook to walking the Thames Path, a 182 mile National Trail from the Woolwich Foot Tunnel in London to the river's source in near Cirencester, passing from central London through Windsor, Henley, and Oxford, and rural countryside. Described in 20 sections, of between 4 and 16 miles (6. 5 32km), it is an mainly flat route with good access by public transport and typically takes two weeks to walk. On its way it passes historic sites such as