This splendid cycling and walking trail takes you along the old Ruabon to Barmouth railway line on excellent paths. The route runs for about 9 miles from the coastal town of Barmouth to Dolgellau, through the Snowdonia National Park. You start by crossing the Barmouth Bridge over the lovely River Mawddach estuary on the coast of Cardigan Bay. The route then runs right alongside the estuary to Penmaenpool Bridge where you can stop for some riverside refreshments. The final stretch continues along the river to the historic town of Dolgellau. It's a beautiful trail with lots of bird watching opportunities around the estuary. The nearby Cadair Idris makes for a wonderful backdrop for the whole of the route. It's also a very flat trail so it's perfect for people of all abilities.
To extend your walking in the Barmouth area try the Panorama Walk. The circular trail climbs above the town for excellent views back down to the estuary.