Barmouth Bridge carries the Cambrian Railway Line, which runs from Shrewsbury to Pwllheli, across the estuary of the River Mawddach between Morfa Mawddach and Barmouth in Gwynedd, Wales. Pedestrians can walk by the side of the track across the river on payment of a small toll fee. (£1.00 for me and bike in 2010). Its cheap at half the price for the views of the estuary alone.