The Wandle Trail is a walking and cycling trail that follows the River Wandle from Croydon to Wandsworth in south-west London.
The Wandle Trail was established by the Wandle Group in association with the Wandle Industrial Museum in September 1988, launched with a walk with over 200 participants, led by Colin Saunders . 'The Wandle Trail Map and Guide' was put together in 1996 by the Wandle Industrial Museum with the support and help of London Borough of Merton, and sponsorship from Brown and Root. The original map was heritage and walk based (although the first, more limited version appeared some years earlier concentrating on disability access to the River Wandle), but then a revised map was produced by Groundwork Merton to facilitate bicycle access.
More information on the Wikipedia page [1]. The London Borough of Merton page is [2].