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Mountain biking trails

Sarn Helen Roman Road – View of Penmachno Valley loop from Betws-y-coed

Routes

Mountain biking trails

Sarn Helen Roman Road – View of Penmachno Valley loop from Betws-y-coed

Hard

5.0

(1)

riders

Sarn Helen Roman Road – View of Penmachno Valley loop from Betws-y-coed

04:51

46.4km

1,270m

Mountain biking

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: April 25, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

Start point

Bus stop

Get Directions

1.98 km

Sarn Helen Trail

Highlight (Segment) • Trail

very rocky and technical

Tip by

4.91 km

Sarn Helen Roman Road

Highlight • Historical Site

Part of the Sarn Helen Roman Road route - named after Celtic Saint Elen of Caernarfon, who was said to have ordered its construction during the 4th century.

Tip by

15.8 km

View of Penmachno Valley

Highlight • Viewpoint

Make sure you pack all your best riding skills for this tour. oh & a snorkel , it's always wet😂

Tip by

19.9 km

Cwm Penmachno Singletrack Descent

Highlight (Segment) • Trail

Absolutely fantastic singletrack section overlooking Cwm Penmachno as you fly down the hillside. A few rollers and small features, it's a really fast section with big, open views and somewhat reminiscent of some Afan descents to the south. Enjoy!

Tip by

22.6 km

Forest Trail in Parc Cenedlaethol Eryri

Highlight • Trail

Classic Welsh trail centre riding, with some gorgeous mossy green scenes as you wind through the trees. A little rocky, plenty of pedalling and lots of corners.

This might not …

Tip by

24.6 km

Ffastis Un, Du and Tri Singletrack Descents

Highlight (Segment) • Viewpoint

Three singletrack descent segments that are a total blast! This is what all the climbing was in aid of.

Narrow slithers of rock and slate with a few rock drops, plentiful corners and mega views down over the valley. Yee-haw!

Tip by

26.0 km

Dolen Machno Singletrack

Highlight • MTB Park

Good trail, easy to learn

Tip by

40.5 km

Capel Curig Byway Descent

Highlight (Segment) • Viewpoint

Nice link between Dolwyddelan & Capel Curig across the shoulder of Moel Siabod. Heading North gives a fun rocky descent on the mtb. Heading South might mean a short hike a bike up the rocky climb.

Tip by

43.5 km

Coed Bryn-y-gefeiliau

Forest

46.4 km

End point

Bus stop

Way Types & Surfaces

Way Types

35.7 km

5.14 km

3.72 km

1.03 km

846 m

Surfaces

30.8 km

8.16 km

5.14 km

1.30 km

537 m

496 m

Elevation

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

Highest point (370 m)

Lowest point (50 m)

Weather

Thursday 9 July

29°C

13°C

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Comments

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Sarn Helen Roman Road – View of Penmachno Valley loop from Betws-y-coed

Sarn Helen Trail

Sarn Helen Roman Road

View of Penmachno Valley

Cwm Penmachno Singletrack Descent

Forest Trail in Parc Cenedlaethol Eryri

Ffastis Un, Du and Tri Singletrack Descents

Dolen Machno Singletrack

Capel Curig Byway Descent

Nearby routes

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