Fort Nelson from Hayling Island: a free Victorian fort and artillery museum near Sandy Point

Fort Nelson is a restored Victorian fort on the top of Portsdown Hill, above Portsmouth Harbour, and home to the Royal Armouries' national collection of artillery. It is about 17 miles, or roughly 30 to 35 minutes by car from Wittering Sands, our exclusive-use house at 14 Wittering Road, Hayling Island PO11 9SP.

It is one of the easiest winter days out from Sandy Point. Entry is free, most of the collection is under cover or underground, it is open through the colder months, and there is plenty for children and for anyone who likes history, engineering or big views. This guide covers what the fort is, what to see, opening in late autumn and winter, families, dogs, getting there and what to pair it with.

What is Fort Nelson?

Fort Nelson is one of five forts built along the ridge of Portsdown Hill in the 1860s, after the 1859 Royal Commission set up under Lord Palmerston to protect the Portsmouth dockyard from a French attack by land. These are often called the Palmerston Forts. Fort Nelson is a six-sided fort with a deep ditch, high ramparts, a barrack block and gunpowder magazines dug deep under the parade ground. It took its name from the Nelson Monument that stands next to it.

The fort was never attacked. It was disarmed in 1907, used as an anti-aircraft ammunition store in the Second World War, and then abandoned in the 1950s. After years of neglect, Hampshire County Council bought it in 1979 and, with volunteers from the Palmerston Forts Society, restored it. It opened to the public in 1994 and became part of the Royal Armouries in 1995. Today it is a Scheduled Ancient Monument covering more than 19 acres of tunnels, ramparts and artillery.

What can you see at Fort Nelson?

The Royal Armouries says there are around 700 artillery guns on display, from the Middle Ages to the late twentieth century. The main areas are:

• Voice of the Guns: the gallery opens with the bronze Great Turkish Bombard, a 15th-century siege gun ordered by Sultan Mehmet II that fired huge stone balls and screws together in two pieces. It also holds two steel tubes of the Iraqi "Supergun" commissioned by Saddam Hussein in the 1980s and seized by British Customs before they could be shipped. Downstairs are the rival German 88 and British 3.7 inch anti-aircraft guns of the Second World War.
• Artillery Hall: dominated by the 18 inch railway howitzer of 1918. Its barrel alone weighs 85 tons and was designed to throw a shell of more than a ton up to 13 miles. Around it are early bronze guns and guns from both world wars and the Cold War.
• Art of Artillery: guns made for show as much as for shooting, including a Burmese bronze "dragon" cannon from 1790, the carved "Furies" gun of 1773 and an unfinished tiger mortar found in India in 1838.
• Underground tunnels: the main tunnel and bypass tunnel run beneath the fort to the powder magazines and the caponiers that guarded the ditch. Look for the Second World War conveyor belt added to move anti-aircraft ammunition.
• Kitchen and barracks: the officers' mess kitchen with its original Victorian range, a reconstructed barrack room, and a hospital room about Florence Nightingale's improvements for wounded soldiers.

Many of the big cannon are displayed in the open and may be touched, which children love. From the ramparts there are wide views over Portsmouth, the Solent and the harbour, and on a clear day you can pick out Hayling Island to the east.

When is Fort Nelson open this autumn and winter?

From the Royal Armouries' own pages, checked on 21 October 2026:

• Term time, November to March: open Tuesday to Sunday, 10am to 4pm (closed on Mondays).
• School holidays, November to March: open every day, 10am to 4pm.
• October half-term, 24 October to 1 November 2026: open every day, 10am to 5pm, including the Monday.
• Term time, April to October: Tuesday to Sunday, 10am to 5pm.

Entry is free, but the Royal Armouries recommends booking a free arrival time online, especially at weekends and in school holidays, when it can get busy. Once you are in, you can stay as long as you like. There is a small parking charge per car, paid at reception on arrival, and Blue Badge holders park free. Some special tours and events have a charge.

The clocks go back on Sunday 25 October, so on winter afternoons it is worth arriving by late morning to see the ramparts and views in daylight. The Royal Armouries does not list its Christmas closure days on the main page, so check before visiting over Christmas and New Year.

What is on in the coming weeks?

• Halloween Fun at the Fort, 24 October to 1 November 2026: a free "Creepy Codebreaker" trail for ages 6 to 10 and free drop-in Halloween activities every day for ages 3 and up. The Royal Armouries says this event sells out, so pre-book free tickets.
• Remembrance, Sunday 8 November 2026: the two-minute silence at 11am and free performances of a short First World War play, Our Little Fort, based on letters and diaries of two soldiers stationed at the fort.
• East Tunnel Tours, 14 November 2026 (and 16 January 2027): guided tours into an unrestored tunnel normally closed to the public, for ages 12 and up, with pre-booking and a charge.
• Albert Bear's Storybook Adventure, 28 November 2026 to 3 January 2027: a free festive family trail through fairy tales and fables, taking about 60 to 90 minutes. Book a free ticket for everyone over 3.

Is Fort Nelson good for families?

Yes. It is free, there is a lot of space, and the tunnels, huge guns and ramparts hold children's attention.

• Café: in the visitor centre, with light meals, cakes, barista coffee and Ration Packs for children, and indoor and outdoor seating with views over the Solent.
• Picnics: you are welcome to bring your own food, and there are plenty of outdoor picnic tables. Barbecues are not allowed.
• Facilities: toilets in the visitor centre and in some galleries, baby changing in the visitor centre, and adapted toilets on both main levels.
• Under 16s: anyone aged 15 and under must be with a responsible adult at all times.
• Safety: the site has steps, gravel, grass and uneven ground, and the Royal Armouries asks visitors not to climb on the banks because of steep drops. Sensible shoes help, especially in wet weather.

If you are planning a stay with children, see our October half-term guide and our milestone birthday guide for three-generation stays.

Can you take a dog to Fort Nelson?

No. To protect the collection, pet dogs are not allowed at Fort Nelson. Assistance dogs are welcome throughout, including the galleries, visitor centre and café.

If your dogs are coming on holiday with you, Fort Nelson works best as a dog-free outing, and you can save the dog walking for the beach and harbour paths. Our dog-friendly Hayling Island guide and winter walks and birdwatching guide cover good walks from the door at Sandy Point.

Is it accessible?

Partly. Fort Nelson is a historic monument with steps, changing surfaces and slopes, but ramps reach much of the site. A lift links the Voice of the Guns gallery with the main gallery level, and the main tunnel and galleries are wheelchair accessible. There are two manual wheelchairs to borrow free on a first come, first served basis, large print guides for most galleries, captioned films, and disabled parking spaces close to the entrance. The special tunnel tours are not accessible. For anything specific, the Royal Armouries suggests contacting the fort before your visit.

How do you get there from Sandy Point?

• By car: about 17 miles and 30 to 35 minutes. Leave the island over the Langstone bridge, head west along the A27 towards Portsmouth and Fareham, then climb onto Portsdown Hill. The address is Fort Nelson, Portsdown Hill Road, Portsmouth PO17 6AN, and the car park is directly outside the visitor centre.
• By public transport: the Royal Armouries says the fort is difficult to reach by public transport. There are buses and trains to Portchester at the bottom of the hill, but the fort is up on the ridge. For a group staying with us, the car is far simpler.

What else could you combine it with?

Portchester Castle is only about 2 miles, or 6 minutes, down the hill, so the two make an easy full day of Roman, medieval and Victorian defences: see our Portchester Castle guide. For the ships and the waterfront, our Portsmouth Harbour guide covers the Historic Dockyard and Gunwharf. For more ideas through the colder months, see our November weekend guide and our Christmas and New Year guide. Closer to home, our Around Hayling guide covers beaches, pubs and walks on the island.

Is this a good rainy-day plan?

Mostly yes. The galleries, Artillery Hall, barracks and tunnels are under cover, and the café is warm, so it is one of the better wet-weather options within half an hour of the house. The ramparts, views and outdoor guns are best on a dry day, and outside paths can be slippery in the rain.

What are the stay details?

Check-in at Wittering Sands is from 4pm and checkout is by 10am. The house sleeps up to nine across four bedrooms and five beds, with 3.5 bathrooms. Children are welcome, and infants under 2 are welcome too, with a travel cot and highchair on request. Up to two well-behaved dogs are welcome. The house is for the booked guests only and does not allow parties or events. The minimum stay is usually 3 nights, and the booking calendar shows the minimum for your dates.

Rates vary by season and length of stay. The live calendar shows the current figure for your dates; this guide does not indicate availability.

How do you book?

Check the live booking calendar for current dates and pricing. If you want to talk through the group, dogs or travel plans, get in touch.

Opening times, events, ticketing, parking arrangements and dog rules can change. Check the Royal Armouries' Fort Nelson pages before you travel.