Dinas Emrys Castle
Legendary Welsh hillfort linked to Arthurian myths
A small rocky outcrop in North Wales where legends link a ruined fort to Merlin; walkers visit for short trails, roadside parking and views of nearby lakes and hills.
Dinas Emrys at a Glance#
Address: Dinas Emrys, near Beddgelert and Caernarfon, Gwynedd, Wales
Admission: Free
About Dinas Emrys#
Dinas Emrys is an ancient hillfort site in north Wales, noted for its earthworks and strong association with the Welsh legend of Vortigern and the prophetic dragons. The site contains visible stone and earth remains concentrated on a rocky hilltop.
The principal attraction is the association with the story of Merlin (Myrddin) and the red and white dragons said to have been found beneath the hill; visitors examine the summit earthworks, a small pool feature and panoramic views over the surrounding valleys. The footprint is compact so visits are typically short walks combined with local trails.
Archaeological evidence shows the site was used as a defended location in the early medieval period and earlier, with later medieval activity layered above earlier earthworks. The legendary account of Vortigern and the dragons is a medieval narrative linked to the site rather than an archaeological description.
The hill sits within Snowdonia in Gwynedd, north Wales, above local valleys and within walking distance of nearby villages and lanes that serve as access points. It is accessed from local car parks and rural footpaths.
- Legendary association: Closely associated with the medieval legend of Vortigern and the dragons; interpretive signage is often present at the site.
- Visiting tip: Small, compact site best visited on foot from nearby lanes and trails; views are best from the summit ridge.
What to See#
- Dragon’s Pool: A small rectangular or rock-cut pool and associated earthworks at the summit area that feature in local legend and remain a visible site feature.
How to Get to Dinas Emrys#
Dinas Emrys is accessed from small public parking and footpaths near the villages of Beddgelert or Dinas on the A4086/A487 routes in Gwynedd. The hill is a short uphill walk from roadside parking; local buses serve nearby towns but stops are a walk away.
Tips for Visiting Dinas Emrys#
- Arrive early morning for quieter light and to avoid afternoon cloud that can descend over the hill.
- Follow the signposted footpaths from the village of Beddgelert/nearby parking rather than picking a scramble - the ground hides potholes and sheep paths.
- Read the Mabinogion excerpt before visiting: the site's charm multiplies when the story of Vortigern and the buried dragons is in mind.
Best Time to Visit Dinas Emrys#
Best visited late spring through early autumn for walking conditions and clearer skies; winter can bring boggy ground and fast-changing weather.
Weather & Climate near Dinas Emrys#
Dinas Emrys's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from 2°C to 19°C. Abundant rainfall (1123 mm/year), wettest in November.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | 2° - 7° | 0° | 107 mm | overcast | 87% | 5.6 m/s | 0.0 low | 7.9h |
| February | Poor | 2° - 7° | 1° | 79 mm | overcast | 87% | 5.4 m/s | 0.1 low | 9.6h |
| March | Acceptable | 3° - 9° | 3° | 98 mm | overcast | 86% | 5.1 m/s | 0.4 low | 11.7h |
| April | Acceptable | 4° - 12° | 5° | 70 mm | overcast | 84% | 4.4 m/s | 0.8 moderate | 13.8h |
| May | Acceptable | 7° - 15° | 11° | 65 mm | overcast | 83% | 4.5 m/s | 1.2 high | 15.7h |
| June | Good | 9° - 17° | 13° | 71 mm | overcast | 84% | 4.1 m/s | 1.4 high | 16.7h |
| July | Good | 12° - 19° | 15° | 74 mm | overcast | 85% | 4.1 m/s | 1.3 high | 16.2h |
| August | Good | 12° - 19° | 15° | 90 mm | overcast | 85% | 3.9 m/s | 1.0 high | 14.6h |
| September | Good | 10° - 17° | 13° | 99 mm | overcast | 85% | 4.2 m/s | 0.6 moderate | 12.5h |
| October | Acceptable | 8° - 14° | 11° | 121 mm | overcast | 85% | 5.0 m/s | 0.3 low | 10.4h |
| November | Poor | 5° - 10° | 4° | 130 mm | overcast | 86% | 4.8 m/s | 0.1 low | 8.4h |
| December | Poor | 3° - 8° | 2° | 119 mm | overcast | 87% | 5.2 m/s | 0.0 low | 7.3h |
