"Mawddach Estuary" . "Afon Mawddach" . . "Afon Mawddach#Estuary" . "Mawddach River" . . . . "Mawddach estuary" . "Afon Mawddach" . . . "River Mawddach" . "Mawdddach estuary" . . "Rivers Mawddach" . . . "Mawddach" . .