4.4
(9)
43
riders
10
rides
Mountain biking around Llanystumdwy offers diverse terrain, from rolling hills and coastal paths to extensive woodland trails. The region is nestled along the Afon Dwyfor, providing access to the dramatic landscapes of the wider Snowdonia area. This includes scenic views stretching across Tremadog Bay and towards the peaks of Snowdonia. The varied landscape provides a mix of terrain suitable for different skill levels.
Last updated: April 25, 2026
4.3
(3)
13
riders
22.2km
01:54
490m
490m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
2
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.0
(2)
5
riders
20.0km
01:21
290m
290m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.5
(2)
6
riders
12.8km
01:15
430m
430m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(1)
5
riders
22.3km
01:23
260m
260m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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small parking bay available
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A great café at Pwllheli railway station
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Porthmadog is simply a busy hub, a gateway to the Llyn Peninsula and Snowdonia National Park. It is a lovely harbour town with a gorgeous mountain backdrop. It also has a good range of shops and attractions including nearby Portmeirion, a narrow-gauge railway, a normal railway and guess what...an excellent hands-on railway museum!
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Pwllheli is a small town with several cafés, pubs and restaurants, as well as a big supermarket (Asda), long sandy beach, promenade and marina. In terms of tourism, Pwllheli is mostly overshadowed by nearby towns like Abersoch, Criccieth, and Porthmadog. However it offers plenty for people passing through or wanting a place for the night, and I feel the beach is very worthy of a detour!
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A nice section of forest path in amongst gorgeous woodland. It gets a tad narrow in places but a very nice bike section.
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Porthmadog is a coastal town in Gwynedd (Wales). It is located 8 km east of Criccieth, 18 km south-west of Blaenau Ffestiniog, 40 km north of Dolgellau and 32 km south of Caernarfon. The population of 4,185 at the 2011 census was estimated at 4,134 in 2019. The town grew in the 19th century as a port for local slate. As this trade declined it became a shopping and tourist centre, close to the Snowdonia National Park and the Ffestiniog railway. It is now a busy port town with a good range of shops and attractions, including nearby Portmeirion. (Wikipedia)
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A scenic single track road with views towards Tre'r Ceiri, the historic and perhaps best-preserved Iron Age hill forts in the UK.
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The three stones above Nant Gwytheryn (the Welsh language and heritage centre), perhaps representing the three peaks of Yr Eifl. From here a short detour to the centre can be made for a cake in the cafe.
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There are 10 mountain bike trails around Llanystumdwy listed on komoot. These routes offer a variety of experiences, from easy loops to more challenging rides.
Mountain biking around Llanystumdwy features diverse terrain, including rolling hills, coastal paths, and extensive woodland trails. You'll find a mix of farmland tracks and sections with significant elevation gains, all set against the backdrop of the Snowdonia mountains and views across Tremadog Bay.
Yes, Llanystumdwy offers trails suitable for various skill levels. There are 4 easy mountain bike routes, such as the Penmorfa Forest Path – View of Porthmadog loop from Porthmadog, which is 12.4 miles (20.0 km) long. These easy trails are generally suitable for families and beginners.
Many routes offer scenic views. For example, the Lleyn Peninsula loop of Yr Eifl provides spectacular views, while the View of Porthmadog – Porthmadog Harbour Town loop from Criccieth offers vistas of Porthmadog and its harbour.
Yes, the region is rich in natural beauty and historical sites. You can find routes that pass near the historic Nant Gwrtheyrn Quarry Ruins. Other notable nearby attractions include the Tre'r Ceiri Hillfort and various summits like Yr Eifl Summit, offering panoramic views.
Llanystumdwy's varied landscapes, including woodlands and coastal paths, make it enjoyable across different seasons. However, for the most comfortable riding conditions and clearer views, spring and autumn are often ideal, avoiding the peak summer crowds and potential winter mud.
The Llanystumdwy area is generally welcoming to dog walkers and outdoor enthusiasts. Many trails, especially those through woodlands and farmland, are suitable for dogs. However, always ensure your dog is under control, especially near livestock, and check specific trail regulations for any restrictions.
Yes, many of the mountain bike routes around Llanystumdwy are circular, allowing you to start and finish at the same point. Examples include the Lleyn Peninsula loop of Yr Eifl and the Nant Gwrtheyrn – Nant Gwrtheyrn Quarry Ruins loop from Llithfaen.
While specific parking details for each trail may vary, Llanystumdwy and nearby towns like Pwllheli and Porthmadog offer various parking options. It's advisable to check local parking facilities near your chosen starting point, especially for popular trailheads.
The area is highly rated by the komoot community, with an average score of 4.4 stars from 9 reviews. Reviewers often praise the diverse terrain, from rolling hills to coastal paths, and the spectacular views, particularly on routes like the Lleyn Peninsula loop of Yr Eifl.
Yes, Llanystumdwy offers moderate to challenging routes with significant elevation gains. The Lleyn Peninsula loop of Yr Eifl, for instance, is a moderate 13.8-mile trail with challenging terrain and an elevation gain of over 490 meters, requiring good fitness and advanced riding skills.


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