Hawin Ab is a river which starts one kilometre south of Dubbyn Moar, it winds east past Peel Godred through the valley and down to the Irish Sea, situated near CronkThe Viaduct and King Orry's Bridge both cross over the river. In the third season episode, Gordon and the Famous VisitorGordon lost his dome here as it fell straight into the river and started to float away.


  • In some appearances of the viaduct, the river is not seen flowing under it.