Stack Rock Fort: Historic Island Fortress off Wales' Coast
A formidable 19th-century island fortress guarding Wales’ Milford Haven, blending military history with rugged coastal beauty.
Stack Rock Fort is a 19th-century fortress located on a rocky island about 800 yards off the western coast of Wales near Milford Haven. Built between 1850 and 1852 and expanded through 1871, it was designed to protect the Royal Naval Dockyard at Pembroke Dock from naval threats. Though never engaged in combat, the fort housed heavy artillery and a garrison, later serving in World War I before being disarmed in 1929. Now privately owned, it remains a striking maritime relic awaiting new purpose.
A brief summary to Stack Rock Fort
- GB
- Visit website
- Duration: 1 to 3 hours
- Mid ranged
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Outdoor
- Mobile reception: 3 out of 5
Local tips
- Access to Stack Rock Fort is by permission only as it is privately owned and secured; arrange visits well in advance.
- Bring suitable waterproof and warm clothing due to the exposed coastal weather and strong winds common around the island.
- Nearby coastal walks in Pembrokeshire offer stunning views and opportunities to explore other historic sites.
- Photography enthusiasts should prepare for dramatic seascapes, rugged stonework, and seabird colonies inhabiting the fort.
For the on-the-go comforts that matter to you
- Information Boards
- Seating Areas
- Trash Bins
Getting There
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Car
Driving from Pembroke Dock to the Stack Rocks car park near the coast takes approximately 20-30 minutes. Parking is available but limited, and the final approach involves walking over uneven terrain. No direct vehicle access to the fort island itself.
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Public Transport
Local bus services connect Pembroke Dock with nearby coastal villages, with stops within 3-5 km of the Stack Rocks area. From there, a moderate walk of 40-60 minutes on coastal paths is required. Bus frequency varies seasonally, so check schedules in advance.
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Walking
Accessible via a 6.3-mile (10.1 km) coastal walk from Stack Rocks to St Govan’s Chapel, featuring stone tracks and grass verges. Terrain is fairly level but includes some uneven surfaces and gentle gradients. No facilities en route, so prepare accordingly.
Stack Rock Fort location weather suitability
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Any Weather
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Windy Conditions
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Rain / Wet Weather
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Clear Skies
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Mild Temperatures
Discover more about Stack Rock Fort
Origins and Strategic Importance
Stack Rock Fort’s story begins centuries before its construction, with initial proposals dating back to 1539 by Thomas Cromwell, who envisioned fortifying the rocky island to guard Milford Haven Waterway. Despite early surveys in 1748 and 1817 recommending defenses, it was not until the mid-19th century, amid rising tensions with France under Napoleon III, that the British government acted. The fort was constructed between 1850 and 1852 to protect the Royal Dockyard at Pembroke Dock, a vital naval asset, from potential seaborne attacks.Architectural Evolution and Armament
The original structure was a three-gun elliptical tower, about 55 feet in diameter and 30 feet tall, housing three 32-pounder guns and a 12-pounder for dock wall defense. However, the arrival of ironclad warships rendered the initial design obsolete, prompting a major expansion from 1859 to 1871. This included encasing the original tower within a larger circular fort featuring casemates for 16 large rifled muzzle loader guns and accommodation for up to 175 troops and five officers. The fort’s walls were thickened to nearly 4.5 meters to withstand modern artillery, and plans for rooftop gun turrets were made though never realized.Military Role and Decline
Stack Rock Fort never saw combat but played a key defensive role, especially during World War I, when it monitored Milford Haven with two quick-firing 12-pounder guns and controlled anti-ship mines in the harbor. Its strategic importance diminished in the early 20th century, leading to disarmament in 1929. The fort was sold in 1932 and has since remained largely abandoned, its rusting cannons and weathered stone walls standing as silent witnesses to a bygone era of coastal defense.Present Condition and Future Prospects
The fort is privately owned and fully secured, with access restricted and visits requiring prior permission. Recently sold again, plans have emerged to preserve Stack Rock Fort as a 'living ruin' accessible to the community. Its isolated island setting, rugged maritime environment, and evocative military architecture make it a unique heritage site with potential for cultural and educational use, though it remains rough around the edges and off-grid.Natural Setting and Surrounding Landscape
Situated on a small rocky island about 800 yards offshore, Stack Rock Fort commands panoramic views over the Milford Haven Waterway and the Irish Sea beyond. The surrounding Pembrokeshire coast is renowned for its dramatic cliffs, natural arches, and rich wildlife, including seabird colonies that now inhabit the fort. Nearby coastal walks offer stunning vistas and connect to other historic sites, embedding the fort within a broader landscape of natural beauty and historical intrigue.Architectural Significance and Legacy
Stack Rock Fort exemplifies Victorian military engineering adapted to evolving naval technology. Its layered construction—from the original mid-19th-century gun tower to the expansive granite and limestone casemates—reflects the shifting demands of coastal defense. Though never tested in battle, the fort’s imposing presence and innovative design underscore the strategic foresight of its builders and the maritime heritage of West Wales.Iconic landmarks you can’t miss
Stack Rock Fort
0.0 km
A formidable 19th-century island fortress guarding Wales’ Milford Haven, blending military history with rugged coastal beauty.
Tŷ Milford Waterfront
3.7 km
Modern nautical charm meets stunning marina views at Tŷ Milford Waterfront, a stylish family-friendly hotel in scenic Milford Haven.
West Blockhouse Fort
4.8 km
A commanding 19th-century coastal fort perched on Pembrokeshire cliffs, blending rich military history with stunning sea views and heritage charm.
William Marshal Statue
12.1 km
Medieval England's greatest knight, immortalized in bronze below his castle stronghold.
Porthclais Harbour Authority
22.5 km
Experience the breathtaking beauty and tranquility of Porthclais Harbour, a hidden gem on the Pembrokeshire coastline, perfect for nature lovers and adventure seekers.
Manor Wildlife Park
22.6 km
Immerse yourself in the wonders of wildlife at Manor Wildlife Park, a top tourist attraction in Tenby, showcasing exotic animals and conservation efforts.
Heatherton World of Activities
22.7 km
Experience endless fun and adventure at Heatherton World of Activities, a premier theme park in beautiful St. Florence, Wales, perfect for families and thrill-seekers alike.
Oriel y Parc Gallery & Visitor Centre
22.9 km
Discover the artistic treasures and natural beauty at Oriel y Parc Gallery & Visitor Centre in St. David's, Pembrokeshire.
St Davids Cathedral
23.4 km
Discover the ancient spiritual heart of Wales in St Davids Cathedral, a majestic site of pilgrimage and architectural wonder nestled in Pembrokeshire’s scenic valley.
Great Wedlock Farm & Deer Park
23.4 km
Discover the beauty of nature at Great Wedlock Farm & Deer Park, where adventure and wildlife await in Tenby's picturesque countryside.
Llys yr Esgob, Tyddewi / St Davids Bishop's Palace
23.4 km
Explore the majestic ruins of St Davids Bishop's Palace, a historical landmark that offers a rich tapestry of Welsh heritage and stunning architecture.
The Dinosaur Park Tenby
23.6 km
Experience the thrill of prehistoric adventures at The Dinosaur Park Tenby, where fun and learning come alive amidst life-sized dinosaurs.
Llawhaden Castle
24.3 km
Explore the majestic Llawhaden Castle, a historical gem in Wales, offering breathtaking views and a journey through medieval heritage.
St Justinian's
24.6 km
Explore St Justinian's, a stunning boat ramp and tourist attraction in Pembrokeshire, offering breathtaking coastal views and outdoor adventures.
Folly Farm Adventure Park and Zoo
25.2 km
Experience the joy of wildlife and adventure at Folly Farm Adventure Park and Zoo, Pembrokeshire's top family attraction with fun rides and exotic animals.
Unmissable attractions to see
Chapel Bay Fort & Museum
1.5 km
Explore a WWII coastal fortress brought to life by passionate volunteers within the stunning Pembrokeshire Coast National Park.
Gelliswick Beach
2.3 km
Sheltered sand and shingle beach near Milford Haven, perfect for sailing, sunbathing, and exploring Pembrokeshire’s coastal heritage.
Hubberston Fort
2.6 km
Explore the evocative ruins of Hubberston Fort, a Victorian coastal fortress guarding Milford Haven with rich military history and stunning sea views.
Milford Haven Museum
3.8 km
Discover Milford Haven’s rich maritime heritage and historic waterfront stories at the Old Customs House museum.
Milford Waterfront
3.9 km
Discover Milford Waterfront’s charming blend of seaside views, boutique shopping, and vibrant dining in the heart of Pembrokeshire’s historic harbor town.
St Ann's Head Lighthouse
6.1 km
Explore the breathtaking St Ann's Head Lighthouse, a historical gem along the Pembrokeshire Coast Path, where nature meets maritime heritage.
National Trust - The Point
8.1 km
Accessible coastal viewpoint with stunning panoramas of Pembrokeshire’s rugged coastline and peaceful seating areas managed by the National Trust.
Marloes Sands
8.2 km
Discover the breathtaking golden sands and dramatic cliffs of Marloes Sands, a serene gateway to Pembrokeshire’s iconic coastal trails and wildlife.
St Brides Haven
8.6 km
A sheltered shingle beach with calm waters, rock pools, and historic charm, perfect for family days and coastal adventures in Pembrokeshire.
Broad Haven Beach
8.8 km
A scenic south-facing beach with golden sands, iconic rock formations, and family-friendly waters on Pembrokeshire’s stunning coast.
Musselwick Beach
8.8 km
Secluded and serene, Musselwick Beach offers a peaceful low-tide escape along Pembrokeshire’s rugged coastline.
The Boathouse Gallery
9.1 km
Discover original watercolours and local art inspired by Pembrokeshire’s stunning coastal landscapes at The Boathouse Gallery.
West Martello Tower
9.2 km
Explore West Martello Tower, a historic gem in Pembroke Dock, where military history meets breathtaking coastal views.
Pembroke Dock Heritage Centre
9.9 km
Explore Wales’ rich maritime and aviation heritage at Pembroke Dock Heritage Centre, where history and culture come alive in a historic chapel setting.
Maritime Museum
10.3 km
Discover Pembrokeshire’s rich maritime heritage through engaging exhibits and passionate volunteer guides at the West Wales Maritime Museum.
Essential places to dine
Cafe Môr - The Pembrokeshire Beachfood Company
2.0 km
Discover Pembrokeshire’s coastal flavors at Cafe Môr, where seaweed-inspired street food meets fresh beachside charm.
Martha’s Vineyard
3.9 km
Experience refined British and European dining with stunning marina views at Martha’s Vineyard, a Milford Haven waterfront gem with over 30 years of heritage.
The Griffin
5.3 km
A beloved Pembrokeshire seafood gastropub offering fresh local fish, warm hospitality, and stunning seafront views in the village of Dale.
The Lobster Pot Inn
8.0 km
Cozy coastal inn in Marloes offering fresh seafood, simple comfort, and easy access to Pembrokeshire’s scenic coastal paths.
Ferry House Inn
8.3 km
A family-run inn in Hazelbeach offering cozy rooms, fresh local cuisine, and stunning estuary views in the heart of Pembrokeshire.
Sand & Stone Kitchen
8.6 km
Cozy seaside kitchen serving top-notch breakfast, burgers, and vegan delights in Broad Haven’s charming coastal village.
Paternoster Farm
8.8 km
Rustic farm-to-table dining in Pembrokeshire’s countryside, where seasonal menus and natural wines celebrate local flavors in a converted milking parlour.
The Ocean Cafe Bar & Restaurant
8.8 km
Seaside dining with fresh seafood, hearty breakfasts, and stunning views over Broad Haven’s St Brides Bay.
The Alumchine Restaurant
9.9 km
Savor fresh British seafood and classic dishes with stunning waterfront views at Neyland’s charming Alumchine Restaurant.
The Shipwright Inn
10.0 km
Charming waterfront pub and cozy inn in Pembroke Dock serving local flavors with warm hospitality and scenic harbor views.
The Swan Inn
10.1 km
Authentic Welsh hospitality and hearty fare in the heart of Pembroke Dock's bustling port town.
The Ferry Inn, Pembroke Dock
11.1 km
Experience delightful cuisine with stunning harbor views at The Ferry Inn in Pembroke Dock, where local flavors meet warm Welsh hospitality.
Jolly Sailor
11.5 km
Historic riverside pub with stunning estuary views, hearty British fare, family-friendly spaces, and a welcoming atmosphere in Milford Haven.
The Druidstone Hotel
11.9 km
Eclectic bohemian hotel near Pembrokeshire’s coast, offering creative cuisine, cozy rooms, and stunning seaside views in a relaxed, pet-friendly setting.
Watermans Arms
12.3 km
A charming family-friendly pub by Pembroke’s millpond offering home-cooked food, quality drinks, and scenic castle views in a warm atmosphere.
Markets, malls and hidden boutiques
The Window, Milford Haven
3.9 km
Discover unique gifts, artisan jewellery, and ethnic clothing in a cozy boutique setting at The Window, Milford Haven’s creative treasure.
Mabon Gifts
3.9 km
Discover personalized Celtic, gothic, and fantasy gifts with bespoke printing in the heart of Milford Haven’s historic town center.
The Cheeky Sheep
4.0 km
Discover unique handcrafted gifts and original artwork in the charming setting of Milford Haven Marina’s The Cheeky Sheep.
Pebbles
4.0 km
Handpicked jewellery, gifts, and clothing in a vibrant waterfront setting.
Hector’s Cards & Gifts
4.4 km
Discover heartfelt Welsh gifts, unique cards, and warm hospitality at Hector’s Cards & Gifts in Milford Haven’s historic antique shop.
The Beach Shop
8.6 km
A charming coastal gift shop in Broad Haven offering beach essentials and souvenirs near the scenic Pembrokeshire coastline.
Haven Sports Ltd
8.7 km
Your trusted Broad Haven surf shop offering quality water sports gear and expert local advice for all ages and skill levels.
ManCavePembs
9.7 km
Explore ManCavePembs for unique gifts and souvenirs in Neyland, Milford Haven—where creativity meets local charm for an unforgettable shopping experience.
Something Different
10.5 km
Discover unique gifts and collectibles at Something Different, a charming boutique in the heart of Pembroke Dock.
Pembrokeshire Retail Park
11.0 km
A convenient and well-equipped retail hub in Pembroke Dock offering diverse shops and ample parking for locals and visitors alike.
Pembroke Castle Shop Ltd
12.2 km
Discover unique local gifts and enjoy refreshments within the historic Pembroke Castle grounds at Pembroke Castle Shop Ltd.
The Secret Garden Home & Gift Boutique
12.3 km
Discover unique gifts and homewares in a charming boutique nestled in the historic heart of Pembroke, Wales.
Coast Aquatics
12.6 km
Discover vibrant tropical fish and expert aquatic supplies at Coast Aquatics, Haverfordwest’s specialist aquarium and pond fish center.
Nolton Cross Farm Shop
12.6 km
Authentic Pembrokeshire farm shop offering local Welsh produce, grass-fed beef, and traditional Welshcakes in a serene rural setting.
Sycamore Stores
12.7 km
Friendly local convenience store in Haverfordwest offering fresh local snacks, essentials, and extended daily hours for all your quick shopping needs.
Essential bars & hidden hideouts
The Brook Inn
3.8 km
A warm traditional pub in St Ishmael's offering hearty meals, friendly service, and scenic Pembrokeshire charm.
The Trafalgar
4.2 km
A lively and welcoming bar in Milford Haven offering local brews, live music, and a friendly atmosphere for a perfect coastal unwind.
The Kimberley
4.5 km
A friendly, relaxed sports pub in Milford Haven offering a welcoming atmosphere and great drinks for locals and visitors alike.
St. Brides Inn
8.0 km
Cozy seaside pub in Little Haven serving fresh local seafood, Welsh meats, and warm hospitality in a charming coastal setting.
The Castle
8.0 km
A charming seaside pub in Little Haven offering hearty meals, stunning sea views, and warm, attentive service in a cozy setting.
The Galleon Inn
8.7 km
A family-run coastal pub in Broad Haven offering hearty food, excellent beer, and a warm, lively atmosphere by the sea.
Legends Tavern
9.5 km
Experience warm Welsh hospitality and vibrant local culture at Legends Tavern, Johnston’s lively community pub near Haverfordwest.
The Bar
10.3 km
A vibrant waterfront bar and seafood restaurant with stunning marina views and a welcoming atmosphere in Neyland, Pembrokeshire.
Y Cerrig Glas
10.3 km
A welcoming family-friendly pub in Pembroke Dock serving classic British dishes, with play areas and a sunny patio for all ages.
The Prince of Wales Pembroke Dock
10.6 km
A welcoming traditional pub in Pembroke Dock offering hearty meals, friendly service, and a lively local atmosphere.
The Star Club
10.6 km
A lively bar in Pembroke Dock where vibrant nights come alive with music, drinks, and community spirit.
First & Last
11.3 km
A cozy and traditional pub in Pembroke Dock offering hearty British fare, local ales, and a welcoming community atmosphere.
Royal George
12.3 km
Traditional Welsh pub on Pembroke’s quay offering hearty fare, warm hospitality, and historic charm near the iconic castle.
The Castle Inn
12.4 km
A charming historic pub in Pembroke offering hearty meals, local ales, and a warm Welsh welcome just steps from Pembroke Castle.
OUT Clubs
12.4 km
Experience Pembroke’s vibrant nightlife at OUT Clubs, where lively music and a welcoming crowd create unforgettable evenings on Main Street.
Nightclubs & after hour spots
The Basement
3.8 km
Discover the energetic nightlife of Milford Haven at The Basement, where music, dancing, and vibrant gatherings create unforgettable experiences.
Boulevard Show Bar
3.9 km
Experience vibrant cabaret, live shows, and lively nightlife at Boulevard Show Bar, Milford Haven’s premier entertainment venue.
Paddles
12.4 km
Experience Pembroke’s vibrant nightlife at Paddles, the go-to nightclub for late-night music, drinks, and social energy in the town center.
Eddie Rocks
14.0 km
A vibrant multi-floor nightclub in Haverfordwest offering energetic nights, diverse music, and a welcoming atmosphere by the waterfront.
Comlongon
22.0 km
Experience vibrant nightlife in the charming village of St Florence with Comlongon, Tenby’s energetic nightclub gem.
Sands Nightclub
27.0 km
Saundersfoot’s lively nightclub with dance, drinks, and a vibrant atmosphere near the beach.
Prince Of Wales
27.2 km
Tenby’s iconic late-night nightclub blending lively music, classic charm, and a spirited atmosphere in the heart of Town Wall Arcade.
Hazewell Club
27.2 km
Discover the Hazewell Club in Tenby: a cozy sports club offering a warm atmosphere and local drinks amidst stunning coastal views.
Savannah's Night Club
56.3 km
Experience Carmarthen’s vibrant nightlife at Savannah's Night Club—where music, dance, and stylish vibes create unforgettable Saturday nights.
The Gremlin Club
56.6 km
Vibrant nightlife and lively open mic nights in the heart of Carmarthen’s social scene.
Club Mambo
56.7 km
Discover the energetic vibe of Club Mambo, a lively bar in Carmarthen offering delicious drinks and an unforgettable nightlife experience.
Lucifer's Nightlife
56.8 km
Experience Carmarthen's vibrant nightlife and fast food fusion at Lucifer's Nightlife, where music, dancing, and late-night bites come alive on Queen Street.
The Rainbow Rooms Bar & Club
73.0 km
Experience lively nights and vibrant music at The Rainbow Rooms Bar & Club, Gorseinon’s premier destination for unforgettable nightlife.
Sin City
79.3 km
Energetic Swansea nightclub with live music, affordable drinks, and a lively atmosphere on Dillwyn Street.
Cuba Escape
79.4 km
Experience Swansea’s vibrant nightlife at Cuba Escape, where live music, energetic crowds, and a colorful atmosphere come together for unforgettable nights.
For the vibe & atmosphere seeker
- Scenic
- Unique
- Tranquil
- Adventurous
For the design and aesthetic lover
- Rustic Designs
- Vintage Styles
For the architecture buff
- Historic
- Landmarks
For the view chaser and sunset hunter
- Iconic Views
- Panoramas
- Waterfront
For the social media creator & influencer
- Instagrammable
- Photo Spots
- Selfie Spots
For the eco-conscious traveler
- Protected Area
- Public-Transport Accessible
- Leave-No-Trace Critical
- Locally Managed
- Wildlife Habitat
For the kind of experience you’re after
- Cultural Heritage
- Nature Escape
- Photowalk
- Day Trip
- Adventure Photo Shoot
For how adventurous you want the journey to be
- Easy Access
Location Audience
- Family Friendly
- Senior Friendly
- Child Friendly
- Teen Friendly
- Solo Friendly
- Couple Friendly
- Vegetarian Friendly
- Vegan Friendly