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Routes
Running trails & routes
United Kingdom
Wales
North Wales
Anglesey
Trearddur

Holyhead Mountain & South Stack loop

Moderate

3.0

(1)

7

runners

Holyhead Mountain & South Stack loop

00:38

4.90km

140m

Running

Jog the Holyhead Mountain & South Stack loop, a moderate 3.0-mile route with dramatic coastal views and the iconic South Stack Lighthouse.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

AHNE Ynys Môn

Waypoints

A

Start point

Parking

Get Directions

1

2.00 km

Holyhead Mountain (Mynydd Tŵr) summit

Highlight • Natural Monument

At 722 feet (220 m) above sea level, Holyhead Mountain is the highest summit in the county of Anglesey. The Welsh name, Mynydd Tŵr, means ‘tower’ and you are certainly afforded breathtaking views which stretch as far as Ireland on a clear day.

Tip by

2

4.42 km

South Stack is the most westerly point of Anglesey and is marked by a picturesque lighthouse on towering cliffs. The area is managed by the RSPB because it's an important sea bird nesting site. The visitor centre is run by the RSPB and includes information about the area as well as toilets and a café.

Tip by

B

4.90 km

End point

Parking

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Way Types & Surfaces

Way Types

3.42 km

728 m

416 m

340 m

Surfaces

2.38 km

1.40 km

645 m

263 m

170 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (190 m)

Lowest point (70 m)

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Weather

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Tuesday 5 May

13°C

6°C

0 %

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Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Holyhead Mountain & South Stack loop?

There are several parking options available near the start of the loop. A common starting point is near the South Stack RSPB Visitor Centre, which often has dedicated parking facilities. Be aware that parking can fill up quickly during peak times, especially on weekends and holidays.

Is this trail suitable for jogging, and what is the difficulty level?

Yes, this trail is designed for jogging, but it's considered moderate to challenging. The route features varied and often rugged terrain, including steep, rocky sections, moorland, and potentially boggy paths. It requires good fitness and is more suited for trail running or a strenuous jog rather than a casual run.

What kind of terrain should I expect on the route?

The terrain is quite diverse and rugged. You'll encounter moorland, sections of the coastal path, country lanes, and fields. The path to the summit of Holyhead Mountain is particularly steep and rocky. Some parts may be boggy after rain, and there are both unpaved natural paths and smaller sections of asphalt and gravel. Good, sturdy footwear is highly recommended.

What are the main points of interest along the loop?

The loop offers dramatic scenery and notable landmarks. Key highlights include the summit of Holyhead Mountain (Mynydd Tŵr), offering 360-degree views, and the iconic South Stack Lighthouse. You'll also pass through the RSPB South Stack Cliffs nature reserve, known for its abundant wildlife and precipitous sea cliffs.

Is the Holyhead Mountain & South Stack loop dog-friendly?

Yes, dogs are generally welcome on the trails. However, as a significant portion of the route passes through the RSPB South Stack Cliffs nature reserve, it's crucial to keep dogs on a lead to protect ground-nesting birds, livestock, and other wildlife. Always follow local signage and regulations.

Do I need a permit or is there an entrance fee for the RSPB South Stack Cliffs reserve?

There is no general entrance fee or permit required to access the trails within the RSPB South Stack Cliffs nature reserve. However, there might be charges for parking or specific facilities at the South Stack RSPB Visitor Centre. Donations to support the reserve's conservation work are always welcome.

What is the best time of year to visit for jogging?

Spring and early autumn are often considered the best times. In spring (April-May), you can witness nesting seabirds and vibrant wildflowers. Early autumn (September-October) offers cooler temperatures and potentially clearer views. Summer can be busy, and winter can bring challenging weather conditions, including strong winds and rain, making some sections boggy.

What kind of wildlife can I expect to see?

The area is rich in wildlife, especially within the RSPB South Stack Cliffs nature reserve. You might spot various bird species such as choughs, puffins, and peregrine falcons. Marine life like grey seals and porpoises can sometimes be seen offshore. The reserve is also home to rare plants, including the unique spathulate fleawort.

Does this route connect with other well-known paths?

Yes, a significant portion of this loop, approximately 72%, forms part of the Isle of Anglesey Coastal Path. Many consider this section to be one of the most dramatic parts of the entire Wales Coast Path, offering stunning coastal views.

Are there any facilities like cafes or toilets along the way?

Yes, the South Stack RSPB Visitor Centre is located along the route and typically offers facilities such as a cafe and toilets. It's a good spot for a break or to grab refreshments before or after your jog.

What should I bring for a jog on this trail?

Given the varied and rugged terrain, it's essential to bring appropriate gear. We recommend sturdy trail running shoes with good grip, layers of clothing suitable for changing weather, water, snacks, and a map or GPS device for navigation. Binoculars can enhance your wildlife viewing experience.

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