Dinas Emrys
Dinas Emrys is an Iron Age hillfort and castle probably erected by Prince Llewelyn II to guard the road to the mountain pass of Snowdon. On the map, it sits 10 km north of Penrhyndeudraeth. The register lists it as a scheduled monument.
Castle near Penrhyndeudraeth
One of the best-known places to visit in England, Scotland, Wales and Northern Ireland
#755 of the 8,556 museums, castles, gardens and other attractions we list, by how widely it is covered (10 Wikipedias). About ↓
Near Penrhyndeudraeth
Dinas Emrys is 10 km north of Penrhyndeudraeth. Towns near it ↓
Scheduled monument
On the official list of protected heritage; Penrhyndeudraeth has 12 listed buildings in all, on its History page. About ↓
Written from OpenStreetMap, Wikidata, the ONS built-up areas and Met Office 1991–2020 averages.
Month by month in Penrhyndeudraeth
Afternoons in Penrhyndeudraeth reach 17–19°C from June to September.
Dinas Emrys
It has articles in 10 Wikipedias. There are 17 more places to see within 15 km, beginning with Castell Dolbadarn (11 km).
- Type
- Castle
- Listed
- Scheduled monument
- Wikipedias
- Covered in 10 languages
- Town
- 10 km north of Penrhyndeudraeth
Mapping Dinas Emrys
Orange marks Dinas Emrys, and the numbered points match the list of places below.
© OpenStreetMap contributors · ONS built-up area 2022
The towns around Dinas Emrys
The largest of the 8 towns is Blaenau Ffestiniog, with 3,449 people. Each town here links to its own guide.
Penrhyndeudraeth
Blaenau Ffestiniog
Tremadog
Porthmadog
Compare the 8 towns
| Town | Where Dinas Emrys is | People | Places to visit |
|---|---|---|---|
| Penrhyndeudraeth | 10 km south of it | 1,463 | 5 |
| Blaenau Ffestiniog | 10 km east of it | 3,449 | 3 |
| Tremadog | 10 km southwest of it | 736 | 5 |
| Porthmadog | 11 km south of it | 2,579 | 5 |
| Llanberis | 11 km north of it | 1,838 | 4 |
| Llan Ffestiniog | 12 km southeast of it | 903 | 3 |
| Talysarn | 12 km west of it | 741 | 3 |
| Carmel | 13 km northwest of it | 321 | 3 |
While you are near Dinas Emrys
Within 15 km you can add 3 heritage railways, 2 castles and a museum.
MuseumWelsh Slate Museum11 km away5
Heritage railwayLlanberis Lake Railway13 km away6
Historic housePlas Brondanw7 km away7
Heritage railwayWelsh Highland Heritage Railway11 km away8GardenGardenPant Du Vineyard and Orchard13 km awayWithin 15 km, close and well known first. Numbers match the map.
Questions about Dinas Emrys
Where is Dinas Emrys?
Dinas Emrys is 10 km north of Penrhyndeudraeth, Gwynedd.
What is Dinas Emrys?
Iron Age hillfort and castle probably erected by Prince Llewelyn II to guard the road to the mountain pass of Snowdon.
When is the best time to visit Dinas Emrys?
June to September are the warmest months in Penrhyndeudraeth, with afternoon highs of 17–19°C (Met Office 1991–2020 averages).
Is Dinas Emrys a listed building?
Yes: scheduled monument.
What else is there to see near Dinas Emrys?
Within 15 km: Castell Dolbadarn (11 km), Castell Dolwyddelan (12 km), Welsh Highland Railway (4.9 km) and Welsh Slate Museum (11 km).
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 (4)
- Welsh Slate Museum: Talsarnau Times, CC BY-SA 4.0, Wikimedia Commons
- Llanberis Lake Railway: The original uploader was Mick Knapton at English Wikipedia., CC BY-SA 3.0, Wikimedia Commons
- Plas Brondanw: Original uploader was Oosoom at en.wikipedia, CC BY-SA 3.0, Wikimedia Commons
- Welsh Highland Heritage Railway: Nigel Cliff, CC BY 2.0, 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.