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Cyngor Bro Dyffryn Cennen

Tair Carn Isaf Summit – Carreg Cennen Castle loop from Carreg Cennen Castle

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Hiking trails & Routes

Cyngor Bro Dyffryn Cennen

Tair Carn Isaf Summit – Carreg Cennen Castle loop from Carreg Cennen Castle

Moderate

5.0

(5)

hikers

Tair Carn Isaf Summit – Carreg Cennen Castle loop from Carreg Cennen Castle

03:56

13.1km

410m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 9, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Parking

Get Directions

144 m

Carreg Cennen Castle Entrance and Information Signs

Highlight • Historical Site

Free Car Parking available (donations welcome) and information signage provided about the general area.

Tip by

194 m

Craig-y-Nos Castle Café and Ticket Office

Highlight • Rest Area

Little Cafe and shop which is nice (you can't get a full cooked breakfast but cakes and toast etc available). You also purchase your tickets for the Castle Visit at the till.

Tip by

567 m

Bench With a View of Bannau Brycheiniog National Park

Highlight • Viewpoint

1.08 km

Wooden Bridge Over Stream in Bannau Brycheiniog National Park

Highlight • River

This makes for a nice little rest stop before the last walk up the hill to the castle.

Tip by

1.51 km

Tair Carn Isaf at 460m stands at the western end of the Brecon Beacons National Park. This position creates amazing views south over the Gower and out to the Bristol Channel and west towards Pembrokeshire.

There are three stone cairns on the summit, one has a trig point.

Tip by

10.9 km

Llygad Llwchwr (Source of the River Loughor)

Highlight • Cave

This magical spot, Llygad Llwchwr which translates as "eye of the Loughor" is where the River Loughor emerges from its source - an underground lake at the Black Mountain. Below the surface from Llygad Llwchwr is a 1.2 km-long cave system in the Black Mountain.

The cave contains a dry high level series and an active river level. Beyond the fourth river chamber exploration is only possible by cave diving.

Tip by

12.8 km

Carreg Cennen Castle

Highlight • Castle

This castle is sited on a high rocky outcrop overlooking the River Cennen, close to the village of Trap and within the Brecon Beacons National Park.
It has a spectacular location due to its position above a limestone precipice. The Castle, tea rooms and gift shop are open daily.

Tip by

13.1 km

End point

Parking

Way Types & Surfaces

Way Types

7.26 km

2.95 km

2.26 km

613 m

Surfaces

7.49 km

2.74 km

1.13 km

736 m

574 m

419 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (470 m)

Lowest point (140 m)

Weather

Sunday 23 August

23°C

9°C

0 %

Additional weather tips

Max wind speed: 20.0 km/h

to get more detailed weather forecasts along your route

Comments

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Tair Carn Isaf Summit – Carreg Cennen Castle loop from Carreg Cennen Castle

Carreg Cennen Castle Entrance and Information Signs

Craig-y-Nos Castle Café and Ticket Office

Bench With a View of Bannau Brycheiniog National Park

Wooden Bridge Over Stream in Bannau Brycheiniog National Park

View of Carreg Cennen Castle