Where is Portus Adurni?

Portus Adurni is in Hampshire, South-East England, United Kingdom (postcode PO16 9QW), in the parish of Fareham, unparished area.

How do I get to Portus Adurni?

The nearest railway station is Portchester, about 1.4 km away. Drivers can use postcode PO16 9QW.

Is Portus Adurni a protected site?

Yes — Portus Adurni is part of the Portsmouth Harbour SSSI Site of Special Scientific Interest and the Portsmouth Harbour Ramsar wetland.

Is Portus Adurni free to visit?

Yes, Portus Adurni is free to enter.

How do I get to Portus Adurni?

The nearest railway station is Portchester, about 1.4 km away. Drivers can navigate to postcode PO16 9QW.

Hill forts · South East England

Portus Adurni

In or near Portsmouth.

RomanFree admission♿ Wheelchair accessible★ 4.6 · 5,221 Google reviews

Portus Adurni is a hill fort in the United Kingdom.

Portus Adurni, hill forts in Hampshire — Wikimedia Commons contributors — see linked file page for photographer and licence licence

Plan your visit

Typical visit: 1 h–2 h
Nearest railway station: Portchester · 1.4 km

Free entry
Dog-friendly
Wheelchair accessible

Getting there & planning your visit

To visit Portus Adurni, the nearest railway station is Portchester, located 1.4 km away. The postcode for sat-nav is PO16 9QW, and entry is free. The site is wheelchair accessible.

Directions on Google Maps →

Portus Adurni is a hill fort in the United Kingdom. Records date its origin to AD 300. It covers approximately 3 km². Part of Saxon Shore. Coordinates: 50.8381°, -1.1150°.

Photo gallery

Summary from the official site

Portchester Castle is a historic site that originated as a Roman fort designed to protect the southeast coast of Britain. Visitors can explore its well-preserved Roman defenses, climb the Norman keep for panoramic views, and learn about the stories of prisoners of war from the Napoleonic era.

Read more on the official property page.

Protected designations

Site of Special Scientific Interest: Portsmouth Harbour SSSI
Ramsar wetland: Portsmouth Harbour

Designations sourced from Natural England open data under OGL v3.

From the Wikipedia article

Portus Adurni was a Roman fort in the Roman province of Britannia situated at the north end of Portsmouth Harbour. It was part of the Saxon Shore, and is the best-preserved Roman fort north of the Alps. Around an eighth of the fort has been excavated. It was later converted into a medieval castle known as Portchester Castle.

Excerpt from Wikipedia under CC BY-SA 4.0. See the source article linked in Sources below.

Background

History

The Saxon Shore forts, including Portus Adurni, were built during the mid to late 3rd century amid increased instability in north-eastern Gaul and the Rhineland, eventually leading to the Roman evacuation of that area. The forts were intended to maintain control over the region, and monitor shipping and trade, as well as defending against raids from across the English Channel. These forts became defensive holding points for the rebel Carausius, who in 285 was given the task of solving the Saxon piracy problem in the English Channel. When Carausius was charged with keeping the pirates' booty for himself, he retreated to Britain and proclaimed himself Emperor. The revolt went on for almost 10…

Sourced from Wikipedia under CC BY-SA 4.0.

Coordinates: 50.8381, -1.1150
County: Hampshire
District: Fareham
Parish: Fareham, unparished area
Postcode: PO16 9QW
Parliamentary constituency: Fareham and Waterlooville
Established: 300
Nearest railway station: Portchester — 1.4 km
Opening: Daily 10am–5pm; last entry at 4.30pm
Official site: www.english-heritage.org.uk

Sources

wikidata: Q762664 (CC0)
wikipedia: Portus Adurni (CC BY-SA 4.0)
commons: Portchester castle 02.jpg (CC BY-SA 4.0)

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