Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Places to see
Mountain passes
United Kingdom
Wales
North Wales
Gwynedd

Llanuwchllyn

Top 10 Mountain Passes around Llanuwchllyn

Mountain passes around Llanuwchllyn offer access to the rugged landscapes of Snowdonia National Park. This region features significant elevations and challenging routes, providing a diverse environment for outdoor activities. Historically, some passes served as pilgrim routes and testing grounds for early vehicle industries. The area is characterized by its natural features and varied terrain.

Best mountain passes around Llanuwchllyn

  • The most popular mountain pass is Bwlch y Groes, a challenging mountain pass that is the second-highest public road mountain…

Last updated: April 28, 2026

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 …

Tip by

See rides here

Send to Phone

Save

Hirnant Pass Climb from Rhiwargor

Highlight (Segment) • Viewpoint

There is more climbing on this side of the Hirnant climb starting from Lake Vyrnwy. The 4km climb can be divided into four sections - the first 1km steeply beyond …

Translated by Google •

Tip by

Save

Sign up now to discover places like this

Get recommendations on the best single tracks, peaks, & plenty of other exciting outdoor places.

Sign up for free

Hirnant Pass Climb (Rhosygwaliau Side)

Highlight (Segment) • Viewpoint

Just under 2km in length, this climb averages 8% but towards the top ratchets up to well over 10% to maximise the suffering

Tip by

Save

Bwlch y Safan Pass

Highlight (Segment) • Mountain Pass

This is the B4391 that travels over the Berwyns, from Bala in the north to Llangynog in the south. The northern half of the route is also the border of Snowdonia national Park.
High point of 486m so great views.

Tip by

Save

Bwlch-y-Groes Climb from Llanuwchllyn

Highlight (Segment) • Viewpoint

8km at a 4% average gradient.... however, there are much steeper sections upwards of 13% through the trees and past the stone wall. Strava segment is called 'Llanwchllyn'.

Tip by

Save

Sign up for free to discover even more mountain passes around Llanuwchllyn.

Sign up for free

Already have an account?

Start today with a free account

Your next adventure awaits.

Login or Signup

Popular around Llanuwchllyn

Cycling around Llanuwchllyn

Running Trails around Llanuwchllyn

MTB Trails around Llanuwchllyn

Hiking around Llanuwchllyn

Road Cycling Routes around Llanuwchllyn

Gravel biking around Llanuwchllyn

Tips from the Community

Lol Pro And Her Dog 🇬🇧 🐕🌻
June 24, 2024, Bwlch-y-Groes Climb from Llanuwchllyn

Amazing section of road with amazing views of the mountains around you

0

0

This extraordinary climb is in the northwestern section of Wales in the Snowdonia mountain region. This is the highest paved road and hardest bike climb in Wales. Bwlch y Groes means “Pass of the Cross.”

1

0

Bwlch y Groes is the second highest public road mountain pass in Wales, with a summit altitude of 545 metres. Gospel Pass in south Wales is slightly higher. It lies on minor roads linking Dinas Mawddwy, Llanuwchllyn and Lake Vyrnw

1

0

51m
August 16, 2022, Bwlch y Safan Pass

This is the B4391 that travels over the Berwyns, from Bala in the north to Llangynog in the south. The northern half of the route is also the border of Snowdonia national Park. High point of 486m so great views.

4

0

Absolutely stunning scenery, worth the occasional hike-a-bike up steep gradients.

0

1

Andy
June 14, 2022, Bwlch y Groes

An awesome climb!! Five stars!! Luckily I descended it on my last encounter. Beware when descending as there is a very sharp left hand bend at the bottom!!

4

0

Awesome road climb, with a nasty little surprise kick up at the top.

1

0

Epic road climb. There's a nasty little kick up at the top!!

2

0

Frequently Asked Questions

What natural features and viewpoints can I expect to see on the mountain passes around Llanuwchllyn?

The mountain passes in this region offer stunning natural beauty. For instance, Bwlch y Groes provides panoramic views across the Dyfi Valley and towards Cadair Idris and Aran Fawddwy. Bwlch y Safan Pass also offers great views across the Berwyns, bordering Snowdonia National Park. You'll encounter rugged landscapes, forested areas, and open mountain scenery throughout the passes.

Are there any good stargazing spots on the mountain passes near Llanuwchllyn?

Yes, Bwlch y Groes is recognized by Snowdonia National Park as an excellent location for stargazing, offering clear night skies away from light pollution.

Do any mountain passes around Llanuwchllyn have historical significance?

Absolutely. Bwlch y Groes, also known as 'Hellfire Pass,' was historically part of a pilgrim's route to St David's. In the early to mid-20th century, it served as a formidable testing ground for British motorcycle and car industries, including BSA and Austin Motor Company, to test prototype vehicles and their hill-climbing performance.

Are the mountain passes around Llanuwchllyn suitable for cycling?

Yes, many passes are popular with cyclists. Bwlch y Groes is particularly famous as a challenging climb, included in Britain's '100 Greatest Cycling Climbs.' Bwlch y Safan Pass is also an intermediate cycle way. For more cycling options, you can explore various cycling routes around Llanuwchllyn, including challenging road cycling routes.

What are some challenging mountain passes for experienced cyclists or drivers?

Bwlch y Groes is renowned for its challenging ascent, with gradients reaching up to 25%. It's the highest tarmacked pass in Wales. The Hirnant Pass Climb from Rhiwargor also features steep sections and is considered challenging. Bwlch Pen-feidiog, while perhaps quieter, offers a sustained climb with an average gradient of 4% over 10.6 km.

Are there hiking trails near the mountain passes around Llanuwchllyn?

Yes, the region offers numerous hiking opportunities. While the passes themselves are often roads, they provide access to trailheads. For easy walks, you can find easy hikes around Llanuwchllyn, such as the 'Bridge with View of Waterfall – Rhiwargor Waterfall loop'.

What is the best time of year to visit the mountain passes in Llanuwchllyn?

The mountain passes are generally best visited during the warmer months, from late spring to early autumn (May to October), when weather conditions are more stable and roads are clear of snow and ice. This period also offers the best visibility for enjoying the panoramic views.

What do visitors enjoy most about the mountain passes in this area?

Visitors frequently praise the dramatic and challenging nature of the drives and cycles, the rich history, and the truly spectacular vistas across the Snowdonia landscape. The demanding climbs, like Bwlch y Groes, are often described as rewarding experiences for those seeking adventure and incredible natural beauty.

Are there any intermediate mountain passes suitable for less extreme challenges?

Yes, Bwlch y Safan Pass is categorized as an intermediate mountain pass and cycle way, reaching a high point of 486 meters with great views. Bwlch Oerddrws Pass is also considered intermediate and popular for cyclists and hikers.

What is the elevation of the highest mountain passes in the Llanuwchllyn area?

Bwlch y Groes reaches an altitude of 545 meters (1,788 ft), making it the second-highest public road mountain pass in Wales and the highest tarmacked pass in the country. Bwlch Pen-feidiog has a summit altitude of 531 meters (1,742 ft).

Can I find quiet, scenic routes through the mountains near Llanuwchllyn?

Yes, Bwlch Pen-feidiog, while less historically documented than Bwlch y Groes, provides an alternative, scenic route through the Snowdonia region. It's noted for its beautiful scenery and can offer a quieter, yet still challenging, mountain experience for drivers, cyclists, and those appreciating mountain landscapes.

What kind of wildlife might I spot around the mountain passes?

While not explicitly detailed for all passes, the Snowdonia National Park is rich in wildlife. On Bwlch y Safan Pass, for example, visitors are advised to keep an eye out for Red Kites, which are often spotted in the area.

Most popular routes around Llanuwchllyn

Cycling around Llanuwchllyn

Most popular attractions around Llanuwchllyn

Places to see

Store rating

Get inspired with the komoot mobile app

With a free komoot account, you can easily find, customize, and navigate endless outdoor adventures.

or

Join komoot Now

Store rating

Explore more

See even more epic mountain passes by checking out these guides around Llanuwchllyn:

BeddgelertSnowdoniaLlanberisLlanllechidBetws GarmonLlandygaiMawddwyBrithdir And LlanfachrethLlanfrothenFfestiniogLlanddeiniolenLlangywerLlanelltydDolgellauLlandderfelArthogLlanfihangel-Y-PennantLlanycilWaunfawrLlanllyfniCorrisDolbenmaenGanllwydTrawsfynyddAberMaentwrogBalaTalsarnauDyffryn ArdudwyBarmouthBethesdaLlanrugLlanwndaLlandwrog

Nearby adventure guides

Things to Do around Llanycil

background

Get ready to conquer new peaks

Sign up for Free

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy