Route 70 - Sustrans.org.ukRoute 70 is a 127.1-mile route on the National Cycle Network, connecting the coast at Walney Island by Barrow-In-Furness to Sunderland.routeShare this page This route is on the National Cycle Network. Forming the principal route of the Walney to Wear (W2W) - a long-distance coast to coast cycle route which links Walney Island on the southwestern tip of Cumbria's Irish Sea coast with the mouth https://www.sustrans.org.uk/find-a-route-on-the-national-cycle-network/route-70/