St Lythans Burial Chamber – Porthkerry Viaduct loop from Dinas Powys

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. The starting point of the route is accessible with public transport.

Last updated: August 6, 2026

Tips

Includes a segment in which cycling is not permitted

After 9.12 km for 148 m

Waypoints

Start point

Train Station

Get Directions

2.42 km

Coed Ysgubor-goch

Forest

8.52 km

Coed Maes y Felin

Forest

9.19 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) …

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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.

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27.0 km

Old Swan Inn and Tudor Tavern, Llantwit Major

Highlight • Pub

27.4 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 …

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29.5 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

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46.4 km

Porthkerry Viaduct

Highlight • Monument

Quiet ride from Cardiff Bay

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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.

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