Fort Nelson Portsmouth

Four children walking across tyres laid flat

Schools out! Time to head to Fort Nelson for the best day out in history.

This summer holidays Fort Nelson has a junior assault course (£/3+) which is back by popular demand, and there’s a brand-new Crossbow Challenge (£/8+). Plus, there’s Pizzas on the Parade, and light meals, drinks, and snacks in our cafe.

Fort Nelson is home to the Royal Armouries’ national collection of artillery. Over 300 big guns, representing centuries of historic firepower, are displayed throughout this massive Victorian fort. With acres of tunnels and ramparts to explore, come and discover the history on your doorstep.

Book Tickets

Free Entry

Opening Times

School Holiday: 23 July to 31 August
Open daily including Bank Holiday Monday
10am to 5pm

Term-time: 1 September to 23 October
Open Tuesday to Sunday
10am to 5pm

Getting Here

Portsdown Hill Road,
Portsmouth
PO17 6AN
United Kingdom

With over 19 acres of tunnels, ramparts and artillery to explore, Fort Nelson is a space where imaginations can run wild.

Overlooking Portsmouth Harbour, this restored Victorian fortress is packed with artillery from across the world. Highlights include a 15th-century Turkish bombard cannon, a gigantic 200-tonne railway howitzer, and the infamous ‘Big Babylon’ Iraqi supergun.

There’s plenty for all ages to enjoy, including free family activities, an onsite café and regularly changing exhibitions.

Fort Nelson is free to enter, pre-book your visit today.

Book Tickets for 21 July to 6 September 2026

Book Tickets for 8 September to 23 October 2026

Book Tickets for 24 October to 1 November 2026

Book Tickets for 3 November to 27 November 2026

Young people aged 15 and under must be accompanied by a responsible adult at all times.

More information on visitor behaviour and guidance.

Royal Armouries Members can park for free at the onsite car park, non-Members can pay for parking on arrival.