There is now a guide for the England Coast Path and other paths, recently published by Kent Ramblers, or why not loan a copy from Kent Libraries.
New Section Now Open
From January 2022, a new stretch has been opened on the northern coast of Kent. This 49 mile (79km) section joins Grain – on the Isle of Grain – with the Woolwich foot tunnel. From Woolwich this new section links up with the Thames Path, creating a continuous, waymarked route from the source of the Thames.