Can I walk from Trearddur Bay to Rhoscolyn?

Yes, the Anglesey Coastal Path runs from Trearddur Bay south to Rhoscolyn Headland. The White Eagle (4.5★, 1,810 reviews) pub at Rhoscolyn makes an ideal destination.

Is Trearddur Bay dog-friendly for walking?

Isle of Anglesey County Council restricts dogs from designated areas at Trearddur Bay and Porth Dafarch between 1 May and 30 September, and requires dogs to be kept on a lead on the Trearddur Bay promenade. For other routes, check the signs at the start of the walk. We don't state dog rules for every path.

Can I cycle the coastal path from Trearddur Bay?

Not on a footpath. Isle of Anglesey County Council classes footpaths and footways as routes for pedestrians only, and says cyclists are not advised to use either unless signs say otherwise. Cycles are welcome on routes marked as byways or bridleways, and a bridleway can be used by walkers, horse riders and pedal cyclists. The council's Public Rights of Way team records and maintains these routes.

Is there parking at Breakwater Country Park?

Yes. Isle of Anglesey County Council states there is parking available at Breakwater Country Park, next to Holyhead. The council also lists walks from the park with access to Holyhead Mountain and South Stack. You can apply for a parking season ticket if you use the car park regularly.

How are walking paths marked on Anglesey?

Isle of Anglesey County Council says public footpaths are often way-marked with yellow arrows, and bridleways with blue arrows. Restricted byways are sometimes way-marked with purple arrows. The council, as highway authority, is responsible for signing and waymarking rights of way where they leave the road.

Walks and trails from Trearddur Bay

Updated September 2026

One of the things that most surprises people who move here or holiday here for the first time is how much walking is on offer. From an easy stroll to longer days on the cliffs, the variety within a few miles of our bay is genuinely remarkable.

Trearddur Bay to Porth Dafarch

The shortest walk on this list. From the south end of Trearddur Bay beach, a well-maintained coastal path climbs gently along the cliffs southwards, with views across to Holyhead Mountain and the Irish Sea the whole way. The views reward every step.

Porth Dafarch (5.0★, 3 reviews) itself is a small, sheltered cove popular with kayakers and snorkellers. From here the path continues further south to Porth y Post (4.8★, 80 reviews), another tiny inlet. The full Porth Dafarch (5.0★, 3 reviews) to Porth y Post section and feels much more remote than you'd expect this close to the main bay.

Trearddur Bay to Rhoscolyn: the classic coastal path day walk

This is the longest walk on the list, and for good reason. The Anglesey Coastal Path runs from Trearddur Bay south to Rhoscolyn Headland, along cliff tops and small coves. The path undulates along cliff tops, dipping down to small coves and back up again, with views that constantly reward the effort.

You pass Porth Dafarch (5.0★, 3 reviews) and Porth y Post along the way, and the further south you go the more dramatic the cliffs become. When you reach Rhoscolyn Headland, The White Eagle (4.5★, 1,810 reviews) pub is waiting at the end, which feels like exactly the right kind of reward for a long walk. You can either retrace your steps or take the bus back (check Arriva Cymru for times; it's not frequent, so plan ahead).

The Anglesey Coastal Path runs 130 miles around the entire island, and Trearddur Bay sits on one of its coastal sections. If you're here for a week and enjoy walking, you could spend several days exploring different stretches without covering the same ground twice.

Trearddur Bay to Rhoscolyn: the classic coastal path day walk

South Stack and Holyhead Mountain

South Stack, signposted from Trearddur Bay and 3 miles from Holyhead (Trinity House), is a well-known headland on Holy Island. The RSPB reserve here is home to seabirds (puffins, razorbills, guillemots and chough), most visible in spring and summer when they breed on the cliffs. The crossing to Ellin's Tower, the old lighthouse keeper's station now run as a visitor centre, gives you the full cliff-edge experience without needing to do a serious climb.

Above South Stack, Holyhead Mountain rises steeply, the highest point on Anglesey and one of the highest peaks in north Wales. The 360-degree views are exceptional. On a clear day you can see across to Ireland, Snowdonia's peaks to the east, and the full sweep of the Irish Sea. It's the kind of view that makes you understand why people have lived on this island for thousands of years.

Holyhead Mountain is also a Scheduled Ancient Monument, with the remains of prehistoric settlements and Roman fortifications visible on the upper slopes. The history layered into the landscape adds something extra to a walk that would be worth doing for the views alone.

Breakwater Country Park

For something completely different, the Breakwater Country Park (4.7★, 1,310 reviews) on the edge of Holyhead offers easy, flat walking with a strong industrial heritage narrative. The breakwater itself was built in the 19th century to protect the harbour. It's over a mile long and an impressive piece of Victorian engineering even now.

There's a visitor centre, a pond, and a stretch of reclaimed industrial land that's been allowed to rewild into meadow and wetland. It's popular with dog walkers and families, and a good option if you want a gentle morning walk that doesn't require any fitness or navigation. The café by the visitor centre does decent coffee and cakes.

Porth Diana Nature Reserve

Right on the northern edge of Trearddur Bay, Porth Diana (4.6★, 61 reviews) is managed by the Wildlife Trust of South Wales and offers a short, pleasant loop through wildflower meadows and coastal grassland. The reserve is small (you can walk the full loop) but it's a lovely place to linger, particularly in summer when the meadow flowers attract butterflies and bees.

The path leads down to a rocky beach at the cove itself, which is used for birdwatching and rockpooling. It connects to the coastal path heading north, giving you the option to extend the walk if you want to. One of those places that's easy to walk straight past without noticing, but worth making time for.

Things worth knowing before you set off

The Anglesey Coastal Path is well-signed throughout and there are map boards at regular intervals, but it's worth carrying a map or having a phone GPS to hand for the less obvious paths. Isle of Anglesey County Council restricts dogs from designated areas at Trearddur Bay and Porth Dafarch between 1 May and 30 September, and requires dogs on a lead on the Trearddur Bay promenade. For other routes, check the signs where the path starts.

For beach walks like the one to Porth Dafarch (5.0★, 3 reviews), check the tide times before you go.

If you're doing the longer walks, carry water and something to eat. There are pubs at either end of the Trearddur Bay to Rhoscolyn route, but the section in between has no facilities.

Common questions

Can I walk from Trearddur Bay to Rhoscolyn?: Yes, the Anglesey Coastal Path runs from Trearddur Bay south to Rhoscolyn Headland. The White Eagle (4.5★, 1,810 reviews) pub at Rhoscolyn makes an ideal destination.
Is Trearddur Bay dog-friendly for walking?: Isle of Anglesey County Council restricts dogs from designated areas at Trearddur Bay and Porth Dafarch between 1 May and 30 September, and requires dogs to be kept on a lead on the Trearddur Bay promenade. For other routes, check the signs at the start of the walk. We don't state dog rules for every path.
Can I cycle the coastal path from Trearddur Bay?: Not on a footpath. Isle of Anglesey County Council classes footpaths and footways as routes for pedestrians only, and says cyclists are not advised to use either unless signs say otherwise. Cycles are welcome on routes marked as byways or bridleways, and a bridleway can be used by walkers, horse riders and pedal cyclists. The council's Public Rights of Way team records and maintains these routes.
Is there parking at Breakwater Country Park?: Yes. Isle of Anglesey County Council states there is parking available at Breakwater Country Park, next to Holyhead. The council also lists walks from the park with access to Holyhead Mountain and South Stack. You can apply for a parking season ticket if you use the car park regularly.
How are walking paths marked on Anglesey?: Isle of Anglesey County Council says public footpaths are often way-marked with yellow arrows, and bridleways with blue arrows. Restricted byways are sometimes way-marked with purple arrows. The council, as highway authority, is responsible for signing and waymarking rights of way where they leave the road.