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Group of people and a dog walking the coastal path

Coastal Path: Trearddur to Holyhead

Group of people and a dog walking the coastal path

Route description and map download for section 12 of the Isle of Anglesey Coastal Path.

The route description is included below and can also be downloaded as a file to store on your device for when you're out and about on the walk.

Route description

Walk along the promenade around the bay of Trearddur. Pass the lifeboat hut and turn left along the lane, past a slipway and the Trearddur Bay Hotel.

Pass Porth yr Afon bay and then turn left up a track towards the spooky looking house Craig-y-Môr. Proceed along the track, past the house, and turn left on rejoining the road. Just beyond Porth y Pwll turn left along the path around a headland to Porth y Post, ignoring the narrow access onto an islet. Turn left along the lane.

Go past Moryn, and the access track to Bwth Corwgl, and then turn left down a track. Pass the entrance gates to White Horses, joining a fenced path straight on through a kissing gate and over a bridge onto the headland (National Trust – Porth Dafarch).

Go straight on, onto the headland and follow the coastline round to approach Porth Dafarch. Go through the kissing gate, cross a stream and follow the narrow path to come out by the public toilets at Porth Dafarch. Turn left down the slipway, around the back of the beach below the road, and bear left up a step along a path on a ledge.

Go over a large stile by a caravan park, carry straight on over a hill and follow the coastline. Cross a sleeper bridge and a stone stile and down steps around the back of Copper Mine Creek. Bear right through a field up to a kissing gate. Keep to the well- worn path running parallel with the coast around to another kissing gate. Joining a track bear left and follow the coast round past the island marked Dinas. Keep following the path to Porth Ruffydd.

Follow the path around the back of Porth Ruffydd, bearing left to hug the coast. Keep on the path that is a wide track, ignoring the narrow path past a fenced gully. Pass a large inlet and as you approach Penrhyn Mawr, bear left off the track onto a path and South Stack and Ellin’s Tower begin to come into view. Bear left around Porth y Gwîn past the Stacks you can see below.
Pass a vehicle track and an inlet and then bear right away from the coast towards
Holyhead Mountain.

Head uphill and bear right heading for the roofs that are houses next to the car park you are heading for. Turn left along the main track to reach the car park. Go through the car park, past Gors Goch farm down to a T-junction with the lane. Turn left.

After a couple of bends in the road, turn right onto a fenced path parallel with the road. Go over a stone stile, through the two wicket gates and follow the fenced path round to bear left down to a stone stile out onto a lane. Cross the road and carry on up the hill up a lane. Pass Henborth, Ty’n Nant and Plas Nico and opposite the sign to the hut circles bear left into the RSPB car park. Carry straight on along a path to Ellin’s Tower. Go up the steps, past the lookout and up the stone pitched path to come out onto a lane opposite a lay-by. Turn left.

At the entrance to South Stack lighthouse bear right up a pitched path towards a lookout. Going around the rear of the lookout continue up a well-worn path. Ignore a narrow path leading off to the left and head towards a lone telegraph pole following the crest of the hill. You’ll see a small reservoir to your right and North Stack comes into view in front of you. Follow a path down the slope and up a hill to come out by two buildings on your right. Cross a road that leads to the transmitter station and follow the left-hand fork at the next junction. Keep left where the path splits, and as the ground rises the path splits again. Bear right here.

Cresting the rise, you’ll pass a path off to the right that leads to the summit of Holyhead Mountain. Carry straight on (unless you want to go to the summit) and at a fork bear left. Ascend a short rocky section and you’ll go through an enclosure, alongside a wall past the remains of a building and then descend bearing right away from the wall passing out of the enclosure over a wall. Descend a steep, rocky path heading for the way-markers below you. On meeting a track turn right, and on joining the main track and a line of telegraph poles, turn left down a vehicular track to North Stack.

With your back to the buildings at North Stack bear left, off the track and onto a pitched path curving up and away towards the Breakwater Country Park. As the path levels out bear left down another pitched path in the direction of the breakwater.

Pass the old ‘magazine’ building, keeping it between you and the sea. Come down the steps, bearing right through a natural amphitheatre in the rock, and down through an area of gorse. Follow the path through a field, through a kissing gate to join a track. After an entrance to the Breakwater Country Park on you right, turn left through a gap in the wall. At double stone walls carry straight on towards Porth Namarch.

Turn right and follow the shoreline. Cross a couple of sleeper bridges, up some steps, to reach the headland at Ynys Wellt. Follow the path around the headland (or go straight for a shorter alternative) passing a large drainage grid, curving round to meet the main path, turning left to head down towards the bay next to the Breakwater. Descend steps, briefly joining the beach, then bear right up a path to a road. Turn left and then shortly turn right, just before a large stone turreted building, through a stone passage way onto an enclosed lane.

Follow the lane past a Porth y Felin bay with a slipway and boats moored. Go past the Boathouse Hotel to join the promenade past the Maritime Museum. On meeting Holyhead Port turn right by the Marine Hotel along the main road. Cross Cross Street, pass the South Stack Hotel. Turn right up Boston Street and turn left into a car park. Go through the archway to enter St. Cybi’s Church.



Admission fees apply


Parking charges may apply

Contact Details


Trearddur Bay

Visit Website


  • Café
  • Dogs welcome
  • Family friendly
  • Groups welcome
  • Parking available
  • Public transport nearby
  • Refreshments
  • Shop
  • Toilets