Caer Gybi Roman Fort
Remains of a Roman fortlet in Holyhead, Anglesey, Wales.
Attractions in Trearddur
Photo: Caer Gybi Roman Fort, Nigel Mykura (CC BY-SA 2.0)What to see from Trearddur: Caer Gybi Roman Fort first
Nothing on our list is inside Trearddur’s built-up area; the 4 places to visit are within 5 km of its edge. Among them are 2 forts and 2 museums. For a longer trip, Caernarfon lies 29 km away.
In Trearddur
0
inside the built-up area
Within 5 km
4
of the town’s edge
Museums & galleries
2
in or near town
Castles & historic places
2
in or near town
Best known
Around Trearddur: where to begin
The list goes on from Caer Gybi Roman Fort to 2 museums and a fort.
FortCaer Gybi Roman Fort2.3 km outside town, to the north
MuseumHolyhead Maritime Museum3 km outside town, to the north
FortWorld War II Pillbox100 m outside town, to the southMuseumMuseumHolyhead at War2.9 km outside town, to the northEach has a page of its own: what it is, who runs it, the weather month by month and what else is near it.
The map
Mapped around Trearddur
Out of town, most of the 4 are to the north.
The dashed line is Trearddur’s built-up area; orange marks its middle (where most people live). Numbers match the list below. © OpenStreetMap contributors · ONS built-up area 2022
By kind
What they are
Castles or historic places number 2, museums or galleries 2.
Museums & galleries 2 museums0 in town · 2 nearby
Castles & historic places 2 forts0 in town · 2 nearby
Green: inside Trearddur. Grey: within 5 km of its edge.
Every place
Everything on the list
The list runs to 4 places, all within 5 km of its edge.
Holyhead Maritime Museum
Maritime museum in Holyhead, North Wales, United Kingdom.
World War II Pillbox
Grade II listed building in Anglesey. Located on a rocky promontory to the rear (N) of the Trearddur Bay Hotel, set back from the N side of Lon Isallt.
Close and well known first. Churches and listed buildings are on the History page, not here.
5 listed buildings are on Trearddur’s History page → · Parks, footpaths and green space in Trearddur →
Big names nearby
Days out
Out of town, Caernarfon (29 km) leads 12 names to know.
FortCaernarfon29 km southeast
Castle · CadwCastell Caernarfon28 km southeast
Castle · CadwCastell Biwmares / Beaumaris Castle36 km eastCastleCastle · CadwCastell Dolbadarn39 km southeast
CathedralBangor Cathedral34 km east
CastleCastell Aberlleiniog36 km east
Castle · National TrustPenrhyn Castle36 km east
Fort · CadwCaernarfon Town Walls28 km southeast
CastleCaer y Belan27 km southeast
MuseumWelsh Slate Museum39 km southeast
Art galleryOriel Môn21 km east
Heritage railwayLlanberis Lake Railway37 km southeastPlaces well known beyond Trearddur (Wikipedia articles in several languages, published visitor counts, or a National Trust, English Heritage or Cadw property), close and famous first. Distances are straight lines from the middle of the town.
What people ask about Trearddur
What is there to see near Trearddur?
No attraction is mapped inside Trearddur itself. Within 5 km of it are Caer Gybi Roman Fort, Holyhead Maritime Museum, World War II Pillbox and Holyhead at War.
Does Trearddur have a museum?
2 museums and galleries are in or within 5 km of Trearddur: Holyhead Maritime Museum and Holyhead at War.
Is there a National Trust or English Heritage property near Trearddur?
None within 5 km. The nearest well-known one on our list is Castell Caernarfon (Cadw), 28 km southeast.
What are the best-known days out near Trearddur?
Within 40 km: Caernarfon (29 km), Castell Caernarfon (28 km), Castell Biwmares / Beaumaris Castle (36 km), Castell Dolbadarn (39 km).
Where are Trearddur’s historic buildings listed?
Trearddur has 5 listed buildings. They are on its History page, from Cadw’s list, not repeated here.
How is this list made?
From OpenStreetMap (museums, galleries, zoos, theme parks and attractions, castles, forts and abbeys, and historic houses and gardens that are open to visitors) and Wikidata (what each place is, who runs it, its website and visitor counts). A place counts for Trearddur when it is inside the ONS 2022 built-up area, and as nearby within 5 km of its edge. Opening times and prices are not shown: check the official site.
Places: OpenStreetMap (© OpenStreetMap contributors, Open Database Licence) and Wikidata (CC0), placed in the ONS 2022 built-up area (Open Government Licence v3.0). Visitor counts are the latest Wikidata gives, with their year.
Photos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).
Photo credits (14)
- Caer Gybi Roman Fort: Nigel Mykura, CC BY-SA 2.0, Wikimedia Commons
- Holyhead Maritime Museum: Cls14, CC BY-SA 3.0, Wikimedia Commons
- World War II Pillbox: Eric Jones, CC BY-SA 2.0, Wikimedia Commons
- Caernarfon: Nilfanion, CC BY-SA 4.0, Wikimedia Commons
- Castell Caernarfon: Llywelyn2000, CC BY-SA 4.0, Wikimedia Commons
- Castell Biwmares / Beaumaris Castle: Llywelyn2000, CC BY-SA 4.0, Wikimedia Commons
- Bangor Cathedral: Denis Egan from Bangor, Gwynedd, North Wales, CC BY 2.0, Wikimedia Commons
- Castell Aberlleiniog: Stephen Elwyn RODDICK, CC BY-SA 2.0, Wikimedia Commons
- Penrhyn Castle: Llywelyn2000, CC BY-SA 4.0, Wikimedia Commons
- Caernarfon Town Walls: Philip Halling, CC BY-SA 2.0, Wikimedia Commons
- Caer y Belan: Phyllis Flannagan, CC BY-SA 2.0, Wikimedia Commons
- Welsh Slate Museum: Talsarnau Times, CC BY-SA 4.0, Wikimedia Commons
- Oriel Môn: Neil Theasby, CC BY-SA 2.0, Wikimedia Commons
- Llanberis Lake Railway: The original uploader was Mick Knapton at English Wikipedia., CC BY-SA 3.0, Wikimedia Commons
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.