Section 12 of 84, Wales Coast Path
Four Mile Bridge to Trearddur Bay
9 miles (14.4 km). About 3½ hours, moderate.
Start: SH 279 783. Finish: SH 255 790. OS grid.
Take it with you: download this section's GPX file (it opens in OS Maps, Komoot, Outdooractive or a GPS unit) or open the start in OS Maps.
Warning: Diversion in place. Part of this route is closed or diverted for now. The Wales Coast Path site (updated 22 September 2026) lists temporary diversions in several places, many until further notice, including landslides at Porthdinllaen in Gwynedd and Porth Swtan, Llanfaethlu and Lligwy on Anglesey. Neath Port Talbot Council says the path around Baglan, Briton Ferry and Sandfields West has been closed since 2023 because of sinkholes and the agreed diversion stays in place. Check the official diversions page before setting out. Source: walescoastpath.gov.uk.
Up and down
About 220 m of climbing and 217 m of descent; highest point 57 m.
Getting there
The section starts at Four Mile Bridge.
- Bus stops
- Llais y Mor, 40 m from the start. Directions SH 279 783Capel Sardis, 120 m from the start. Directions SH 278 782Copperfield Close, 270 m from the start. Directions SH 281 785
- Car parks
- Car park, 530 m from the start. Directions SH 274 780Car park, 760 m from the start. Directions SH 272 780
Getting back
The section finishes at Trearddur Bay. Stations and bus stops near the finish:
- Bus stops
- Beach Car Park, 170 m from the finish. Directions SH 257 789Square, 270 m from the finish. Directions SH 256 792
Planning the Wales Coast Path
- Planning the whole trail: walescoastpath.gov.uk.
- Baggage transfer: the services listed for the trail.
What to expect
Underfoot: paved or flagged 32%, grass 31%, gravel and tracks 7%; the rest (29%) isn't recorded.
About 23% on roads with traffic.
On the way: 16 kissing gates, 9 gates, 3 flights of steps.
Steepest climb: about 53 m in a kilometre (1 in 19), starting 5 miles in.
From OpenStreetMap, where mappers have recorded it: check before you go.
Walked it? Log it
Something wrong or missing?
Tell us what to change about this section: a wrong distance, a moved start, a path that's closed.