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St Lythans Burial Chamber – Porthkerry Viaduct loop from Dinas Powys

Routes

Bike touring routes & trails

St Lythans Burial Chamber – Porthkerry Viaduct loop from Dinas Powys

Hard

5.0

(1)

riders

St Lythans Burial Chamber – Porthkerry Viaduct loop from Dinas Powys

03:45

59.6km

650m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: April 17, 2026

Tips

Includes a segment in which cycling is not permitted

After 9.13 km for 148 m

Waypoints

Start point

Train Station

Get Directions

2.43 km

Coed Ysgubor-goch

Forest

8.53 km

Coed Maes y Felin

Forest

9.20 km

St Lythans Burial Chamber

Highlight • Natural Monument

St Lythans Burial Chamber is a Neolithic tomb located in a field on the outskirts of Cardiff. It was originally covered by an earthen mound some 90 feet (27 m) …

Tip by

21.3 km

No Through Road

Highlight • Trail

I've explored this track, it's ridable on a gravel bike to within 400m of it's northern end, then it's over grown. This was in summer so maybe in winter or spring it's passable.

Tip by

27.0 km

Old Swan Inn and Tudor Tavern, Llantwit Major

Highlight • Pub

27.5 km

Café Velo

Highlight • Cafe

Great little café, very bike friendly. There's a load of bike locks hanging on the wall just inside the door that the owner provides to allow you to secure your …

Tip by

29.6 km

Llantwit Major Beach

Highlight • Beach

Good easy route with a of couple inclines which include steps ( which never seem to suite your stride) with a great coffee and cake at Cafe Velo

Tip by

46.4 km

Porthkerry Viaduct

Highlight • Monument

Quiet ride from Cardiff Bay

Tip by

47.3 km

Porthkerry Viaduct has 16 arches and was eventually re-opened in 1900 after a faltering start when numerous supporting piers settled and had to be underpinned and reconstructed. It's been pretty solid since and now it's a Grade II listed building.

Tip by

59.6 km

End point

Train Station

Way Types & Surfaces

Way Types

48.5 km

7.15 km

3.46 km

244 m

209 m

159 m

Surfaces

49.5 km

9.86 km

295 m

Elevation

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

Highest point (120 m)

Lowest point (10 m)

Weather

Wednesday 27 May

26°C

15°C

0 %

Additional weather tips

Max wind speed: 20.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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St Lythans Burial Chamber – Porthkerry Viaduct loop from Dinas Powys

St Lythans Burial Chamber

No Through Road

Old Swan Inn and Tudor Tavern, Llantwit Major

Café Velo

Llantwit Major Beach

Porthkerry Viaduct

View of the Bristol Channel

Porthkerry Viaduct

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