ST2264 : Flatholm Lighthouse

Flat Holm

32m Elevation
32m Prominence
Wales Country
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ST2264 : Flatholm Lighthouse

Morag Sinton Photo source

Overview

Flat Holm: A Hidden Gem in Cardiff Bay

Introduction

Nestled in the Bristol Channel, Flat Holm is a small but fascinating island just off the coast of Cardiff. Standing at a towering elevation of 12 meters, it may not be the highest mountain you've ever summited, but the views are simply stunning!

Geology

Flat Holm's geology is predominantly limestone, part of the extensive Carboniferous limestone deposits. This geological richness fosters a unique ecosystem, perfect for budding naturalists and avid bird watchers alike. Notably, the island hosts a variety of seabirds and rare plants.

Routes

The Flat Holm Walk offers a leisurely 3.5 km loop that showcases the island's natural beauty and history. This route is perfect for families, as it takes about 1.5 hours to complete at an easy pace, leaving plenty of time for exclamations of 'Look at that view!'

Summit Features

At the summit, visitors will find a modest observation point and the historic lighthouse that has been guiding mariners for generations. It’s a great spot to take a cheeky selfie, so make sure you’ve got your camera ready!

Terrain

The island's terrain is a delightful mix of grassy patches and rocky outcrops. It's easy on the feet in most places, but do watch out for the occasional mischievous clump of seaweed if you're near the shore.

Views

From the summit, enjoy breathtaking views of the Bristol Channel, and on a clear day, you may even glimpse the peaks of the Brecon Beacons. Spring and summer are the prime seasons for these vistas, enhanced by the blooming wildflowers - nature’s own confetti!

Hazards

While Flat Holm is generally safe, there's a bit of British weather unpredictability. The coastal paths may become slippery after rain, so do tread carefully. Also, observe strong tides if you plan on wandering the shoreline.

Nearby Summits

Just a stone’s throw away is Steep Holm, slightly taller at 19 meters and equally alluring. It’s worth a visit if you fancy a bit of island-hopping.

Access

Access to Flat Holm is conveniently located at Cardiff Bay where ferry services run regularly. Nearest parking is available for day-trippers, and the bay is easily reached via public transport.

Facilities

On the island, you'll find basic facilities including toilets and a visitor centre during the summer. Don’t forget to pack your own picnic, as the café choices can be limited and quirky!

History

The etymology of Flat Holm is derived from Old Norse, hinting at its age-old charm. Historically, it has been significant as a quarantine station and played roles during the world wars, a quiet witness to many events.

Conclusion

Flat Holm may not be the tallest peak, but what it lacks in elevation, it surely makes up with charm, wildlife, and endless vistas. Whether you’re an avid hiker or just looking for a pleasant day trip, this little island is worth a visit.

Happy hiking!

Explore routes near Flat Holm

Walks starting near this hill. Open a route to check its map, distance and full itinerary.

Weston-super-Mare Walk with Men Walking & Talking

View route

Cardiff: Hailey Park to Blackweir Bridge on the Taff Trail

6.9 km ~2h 15m Easy

View route

Yatton to Sandford Strawberry Line and Cider Orchards

15.2 km ~4h 30m Easy

View route

Newport Fourteen Locks to Risca: Monmouthshire Canal Return

8.2 km ~2h 30m Easy

View route

Route planning notes

These notes describe possible approaches. Check a route's map and access information when planning your walk.

Flat Holm Walk

A gentle circular walk around the island, suitable for all ages.

3.5 km ~1.5 hours Easy
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Hill facts and local notes

Classifications

0-99m hill SIB

Elevation

32m

106 ft

Prominence

32m

Coordinates

51.3756, -3.1184

ST222646

OS Map

171 182

Explorer: 151E 153

At the Summit

The summit features a small observation point and a historic lighthouse, providing a great spot for a quick selfie and some splendid views.

Terrain & Geology

Grassland with some rocky outcrops and paths easy underfoot.

The island is primarily composed of limestone, which has created a unique habitat for diverse flora and fauna. The underlying geology is part of the Carboniferous limestone, giving rise to features such as sea caves and blowholes.

Views & Scenery

From the summit, walkers can see the Bristol Channel, the distant Brecon Beacons, and the city of Cardiff.

History & Heritage

Name Origin

Flat Holm derives its name from the Old Norse 'Holmr' meaning 'small island'.

Historical Significance

Flat Holm has served various purposes throughout history, including a quarantine station in the 19th century and importance during the First and Second World Wars.

Getting There & Facilities

Parking

Parking is available at Cardiff Bay, with a designated area for visitors to drop off before boarding the ferry.

Public Transport

Regular bus services connect Cardiff city centre to Cardiff Bay, and ferries operate to Flat Holm from the Bay.

Nearby Facilities

There are basic facilities on the island, including toilets and a visitor centre during the summer months. Bring your own snacks, as the café is quite limited!

Safety Information

Known Hazards

  • Coastal paths may become slippery after rain, and strong tides can impact access to some areas around the shoreline.

General Safety Tips

  • Check weather conditions before setting out
  • Carry appropriate clothing and equipment
  • Let someone know your planned route
  • Take a map, compass, and GPS device
  • Carry emergency supplies: food, water, first aid kit, torch

Hills

Some common questions about the hills answered

Are there group walks up Flat Holm?

Many walkers use Walkmates to join or organise walks with others. You can check for group walks around Flat Holm through the maps

Are there other walkers around Flat Holm?

Activity varies by location and time, but Walkmates lets you see whether others have shared walks or shown interest in this area. Find other people through the walking friends search walking friends for Flat Holm search or of course create your own walk for Flat Holm

Can I organise a walk to Flat Holm?

Yes. If there aren’t any walks listed already, you can create a walk and make it available for others to join.

If you're signed up to Walkmates, you can create a walk to Flat Holm.

How do I find a walk up this hill?

There are often multiple ways to walk this hill, depending on experience and route preference. Walkmates helps you explore walks and routes that others have shared.

Can I suggest a new route up Flat Holm?

Yes. You can suggest or create routes to share with others. Walkmates focuses on the social side of walking, so routes are used to help people organise walks and explore areas together, rather than as detailed navigation tools or route libraries.

Other uses really appreciate knowledgeable walkers sharing their routes. Share your favourite route to Flat Holm here

The is an error or something incorrect about this hill. How do I let you know?

We always strive to keep the information on Walkmates as accurate as possible. If you find an error, please let us know through the contact form and we'll aim to correct it as quickly as possible

Location

Flat Holm location map

Grid reference: ST222646

View on OpenStreetMap

Opens a map in a new tab, centred on the hill.

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