National Cycle Route 4

[2] At its east end, the route meanders mostly set about one "block" back from the Thames, including several small parks.

Its 13 miles are completely traffic-free and almost entirely flat After passing through Bristol city centre, the route heads north into South Gloucestershire, and over the Severn Bridge.

[citation needed] After Newport, the route heads west to Caerphilly, then north towards Pontypridd during which it crosses the Taff Trail.

Near Briton Ferry, it crosses the A48 bridge and then follows the A483 road (Fabian Way) into Swansea and passes through the Maritime Quarter.

It then follows the seafront promenade along Swansea Bay to Blackpill where it turns north up the Clyne Valley cycle track passing the village of Dunvant until it reaches Gowerton.

Between Pembroke and Haverfordwest, NCR follows the route of a disused railway called the Brunel Trail and crosses over the Cleddau Bridge.

National Cycle Route 4 sign
The Bristol & Bath Railway Path is part of Route 4.
NCR 4 traverses the Millennium Coastal Path at Llanelli .