Newport, Wales the Cardiff Bay Barrage. A Local Nature Reserve is established at Allt-yr-yn. Newport City footbridge is a cycle and pedestrian bridge in Newport city centre linking the east and west banks of the River Usk. A cycle and pedestrian walkway on the west bank of the River Usk links Newport city centre at Crindau to central Caerleon. There is a marked heritage trail in Caerleon. A cycle and pedestrian walkway is on both banks of the River Usk. The East bank path links Newport Bridge to Lliswerry. The West bank path links Newport Bridge to Newport Transporter Bridge and to
River Ogmore as Bridgend with concrete flood protection walls. The River Llynfi ("Afon Llynfi" in Welsh), runs for around 10 miles from its source north of Maesteg and flows generally southwards through the Llynfi Valley to the confluence with the River Ogmore at Aberkenfig. The River Garw flows broadly north-south and runs through Pontycymer to its confluence with the Ogmore (Ogwr) at Brynmenyn. The Ewenny River () rises to the north-east of Bridgend town and flows through Pencoed and Coychurch before entering the River Ogmore estuary just below Ogmore Castle. The industrialisation of the valley of the Ogmore by mining and heavy