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Bike touring routes & trails

Hirnant Pass – Llyn Tegid (Bala Lake) loop from Foel

Bike touring routes & trails

Hirnant Pass – Llyn Tegid (Bala Lake) loop from Foel

Hard

13

riders

Hirnant Pass – Llyn Tegid (Bala Lake) loop from Foel

05:51

86.1km

1,370m

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: February 16, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Bus stop

Get Directions

1

16.4 km

Vyrnwy Dam

Highlight • Lake

The Vyrnwy Dam features a road bridge atop its structure with 31 arches. The dam, notable for being the first with drainage tunnels to prevent pressure build-up, is further characterised by two small towers, each boasting four corner turrets.

Tip by

2

16.6 km

Lake Vyrnwy and Dam

Highlight • Bridge

Park at the very top of the Lake if arriving in a car. Note that some sections can get closed due to rock falls at the top of the Lake near the Waterfall Car Park.

Tip by

3

18.2 km

Lake Vyrnwy Straining Tower

Highlight • Monument

Lake Vyrnwy (Welsh: Llyn Efyrnwy, pronounced [ɛˈvərnʊɨ] or Llyn Llanwddyn) is a reservoir in Powys, Wales, built in the 1880s for Liverpool Corporation Waterworks to supply Liverpool with fresh water. …

Translated by Google •

Tip by

4

29.0 km

Hirnant Pass

Highlight (Segment) • Viewpoint

The road from Bala Lake to Lake Vyrnwy is simply one of the most challenging, scenic and highest rides through the Welsh mountains. If you’re fit enough you will find it one of the greatest rides in the British Isles.

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5

40.7 km

Bala Town Centre

Highlight • Settlement

Bala is a town and community in Gwynedd, Wales. Formerly an urban district, Bala lies in the historic county of Merionethshire at the north end of Bala Lake. it has …

Tip by

6

43.3 km

Llyn Tegid (Bala Lake)

Highlight (Segment) • Viewpoint

Beautiful rolling road following the steam railway. Views over Bala.

Tip by

57.1 km

Bwlch y Groes

Mountain Pass

8

57.8 km

View of the Valley at the Wooden Cross

Highlight • Viewpoint

9

57.9 km

Bwlch y Groes (Hellfire Pass)

Highlight (Segment) • Mountain Pass

Tough road climb, not for the faint hearted! The official top 100 climbs finishes just left of the fork or turn right and descend to the lake.

Tip by

B

86.1 km

End point

Bus stop

Way Types & Surfaces

Way Types

63.3 km

15.2 km

3.43 km

1.76 km

1.61 km

773 m

Surfaces

82.2 km

1.77 km

1.14 km

991 m

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Elevation

Elevation

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

Highest point (540 m)

Lowest point (80 m)

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Weather

Powered by Foreca

Tuesday 12 May

10°C

5°C

80 %

Additional weather tips

Max wind speed: 30.0 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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