Route 61 - Sustrans.org.ukThis is a 36.0-mile route on the National Cycle Network, connecting Maidenhead to Hoddesdon via Hatfield, Welwyn Garden City and Hertford.routeShare this page This route is on the National Cycle Network. Route 61 starts near Maidenhead and follows the Jubilee River until the edge of London, near Uxbridge, where it follows the same route as Route 6 until St Albans. Here the two routes split and https://www.sustrans.org.uk/find-a-route-on-the-national-cycle-network/route-61/