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Routes
Road cycling routes
United Kingdom
Wales
North Wales
Gwynedd
Mawddwy

Bwlch y Groes loop from Dinas Mawddwy

Moderate

13

riders

Bwlch y Groes loop from Dinas Mawddwy

01:21

22.9km

560m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: May 14, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 0 m for 69 m

After 22.8 km for 69 m

Waypoints

A

Start point

Parking

Get Directions

1

7.95 km

Bwlch y Groes Climb from Llanymawddwy

Highlight (Segment) • Mountain Pass

Bwlch y Groes (Pass of the Cross) is one of the highest public road mountain passes in Wales. The views from the top of Bwlch y Groes are stunning with views across the Dyfi valley and Cadair Idris. This 17 mile breathtaking route lies on minor roads linking Dinas Mawddwy and Llanuwchllyn in the heart of the Snowdonia National Park and Lake Vyrnwy.

The route was part of the pilgrim's route from North West Wales to St David's in South Wales. A cross, which is humble in appearance, is not on a map. It can be found just below the summit at the junction of the road that leads down from Lake Vyrnwy. It was placed on the route as a symbol of faith and strength comforting travellers since medieval times.

Cycling the route is definitely not for the faint hearted!

Tip by

2

11.4 km

View of the Valley from Bwlch y Groes

Highlight • Mountain Pass

The climb up to Bwlch-y-Groes from Llanymawddwy is a tough one. It is about 3.4 km long and has about 387 m of vertical ascent to get to the gap at 546 m above sea level. You will have an average gradient of 11.3% to grind away at, but you will be rewarded with fantastic views north and south.

Tip by

3

11.4 km

Bwlch y Groes

Highlight (Segment) • Mountain Pass

The second highest public road mountain pass in Wales this is definitely one to tick off the cycling bucket list. It is narrow and winding so it is recommended to pick a quiet time to cycle up since the stunning views often attract motorists to drive the climb.

The climb is almost 3km long with some quad burning gradients right to the last meter. It may not be for beginners or after a large meal but it is worth a bit of awkward hobbling in cleats to see what waits at the top.

Tip by

B

22.9 km

End point

Parking

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Way Types & Surfaces

Way Types

22.7 km

105 m

Surfaces

22.7 km

105 m

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Elevation

Elevation

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Weather

Powered by Foreca

Monday 13 July

26°C

12°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

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